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Finding the Fourth Proportional to 574,116.48, 792,275.04 and 319,463.28

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Solution

The fourth proportional to 574,116.48, 792,275.04 and 319,463.28 is: 440,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,116.48 : 792,275.04 = 319,463.28 : x
  2. Step 2: Convert to fraction form
    574,116.48/792,275.04 = 319,463.28/x
  3. Step 3: Cross multiply
    574,116.48x = 792,275.04 × 319,463.28
  4. Step 4: Simplify right side
    574,116.48x = 253,102,782,940.53
  5. Step 5: Solve for x
    x = 253,102,782,940.53/574,116.48
  6. Step 6: Final answer
    x = 440,856.15

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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.