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Finding the Fourth Proportional to 574,403.92, 792,691.32 and 319,772.32

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Solution

The fourth proportional to 574,403.92, 792,691.32 and 319,772.32 is: 441,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,403.92 : 792,691.32 = 319,772.32 : x
  2. Step 2: Convert to fraction form
    574,403.92/792,691.32 = 319,772.32/x
  3. Step 3: Cross multiply
    574,403.92x = 792,691.32 × 319,772.32
  4. Step 4: Simplify right side
    574,403.92x = 253,480,742,440.26
  5. Step 5: Solve for x
    x = 253,480,742,440.26/574,403.92
  6. Step 6: Final answer
    x = 441,293.55

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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.