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Finding the Fourth Proportional to 529,468.38, 730,728.54 and 314,608.59

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Solution

The fourth proportional to 529,468.38, 730,728.54 and 314,608.59 is: 434,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,468.38 : 730,728.54 = 314,608.59 : x
  2. Step 2: Convert to fraction form
    529,468.38/730,728.54 = 314,608.59/x
  3. Step 3: Cross multiply
    529,468.38x = 730,728.54 × 314,608.59
  4. Step 4: Simplify right side
    529,468.38x = 229,893,475,642.16
  5. Step 5: Solve for x
    x = 229,893,475,642.16/529,468.38
  6. Step 6: Final answer
    x = 434,196.80

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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.