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Finding the Fourth Proportional to 574,319.12, 792,542.76 and 319,663.76

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Solution

The fourth proportional to 574,319.12, 792,542.76 and 319,663.76 is: 441,126.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,319.12 : 792,542.76 = 319,663.76 : x
  2. Step 2: Convert to fraction form
    574,319.12/792,542.76 = 319,663.76/x
  3. Step 3: Cross multiply
    574,319.12x = 792,542.76 × 319,663.76
  4. Step 4: Simplify right side
    574,319.12x = 253,347,198,622.38
  5. Step 5: Solve for x
    x = 253,347,198,622.38/574,319.12
  6. Step 6: Final answer
    x = 441,126.18

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1.5x scale

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.