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Finding the Fourth Proportional to 552,779.28, 825,131.70 and 474,397.20

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Solution

The fourth proportional to 552,779.28, 825,131.70 and 474,397.20 is: 708,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,779.28 : 825,131.70 = 474,397.20 : x
  2. Step 2: Convert to fraction form
    552,779.28/825,131.70 = 474,397.20/x
  3. Step 3: Cross multiply
    552,779.28x = 825,131.70 × 474,397.20
  4. Step 4: Simplify right side
    552,779.28x = 391,440,168,111.24
  5. Step 5: Solve for x
    x = 391,440,168,111.24/552,779.28
  6. Step 6: Final answer
    x = 708,131.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.