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Finding the Fourth Proportional to 679,210.52, 937,249.52 and 373,283.55

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Solution

The fourth proportional to 679,210.52, 937,249.52 and 373,283.55 is: 515,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,210.52 : 937,249.52 = 373,283.55 : x
  2. Step 2: Convert to fraction form
    679,210.52/937,249.52 = 373,283.55/x
  3. Step 3: Cross multiply
    679,210.52x = 937,249.52 × 373,283.55
  4. Step 4: Simplify right side
    679,210.52x = 349,859,826,194.98
  5. Step 5: Solve for x
    x = 349,859,826,194.98/679,210.52
  6. Step 6: Final answer
    x = 515,097.78

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.