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Finding the Fourth Proportional to 574,123.52, 792,279.96 and 319,472.48

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Solution

The fourth proportional to 574,123.52, 792,279.96 and 319,472.48 is: 440,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,123.52 : 792,279.96 = 319,472.48 : x
  2. Step 2: Convert to fraction form
    574,123.52/792,279.96 = 319,472.48/x
  3. Step 3: Cross multiply
    574,123.52x = 792,279.96 × 319,472.48
  4. Step 4: Simplify right side
    574,123.52x = 253,111,643,675.50
  5. Step 5: Solve for x
    x = 253,111,643,675.50/574,123.52
  6. Step 6: Final answer
    x = 440,866.18

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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.