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Finding the Fourth Proportional to 528,092.55, 792,138.83 and 440,612.55

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Solution

The fourth proportional to 528,092.55, 792,138.83 and 440,612.55 is: 660,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,092.55 : 792,138.83 = 440,612.55 : x
  2. Step 2: Convert to fraction form
    528,092.55/792,138.83 = 440,612.55/x
  3. Step 3: Cross multiply
    528,092.55x = 792,138.83 × 440,612.55
  4. Step 4: Simplify right side
    528,092.55x = 349,026,307,637.25
  5. Step 5: Solve for x
    x = 349,026,307,637.25/528,092.55
  6. Step 6: Final answer
    x = 660,918.83

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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.