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Finding the Fourth Proportional to 503,917,793.55, 755,876,690.33 and 503,917,793.55

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Solution

The fourth proportional to 503,917,793.55, 755,876,690.33 and 503,917,793.55 is: 755,876,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,917,793.55 : 755,876,690.33 = 503,917,793.55 : x
  2. Step 2: Convert to fraction form
    503,917,793.55/755,876,690.33 = 503,917,793.55/x
  3. Step 3: Cross multiply
    503,917,793.55x = 755,876,690.33 × 503,917,793.55
  4. Step 4: Simplify right side
    503,917,793.55x = 380,899,713,984,450,688
  5. Step 5: Solve for x
    x = 380,899,713,984,450,688/503,917,793.55
  6. Step 6: Final answer
    x = 755,876,690.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.