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Finding the Fourth Proportional to 552,370.20, 826,805.70 and 433,397.40

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Solution

The fourth proportional to 552,370.20, 826,805.70 and 433,397.40 is: 648,723.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,370.20 : 826,805.70 = 433,397.40 : x
  2. Step 2: Convert to fraction form
    552,370.20/826,805.70 = 433,397.40/x
  3. Step 3: Cross multiply
    552,370.20x = 826,805.70 × 433,397.40
  4. Step 4: Simplify right side
    552,370.20x = 358,335,440,685.18
  5. Step 5: Solve for x
    x = 358,335,440,685.18/552,370.20
  6. Step 6: Final answer
    x = 648,723.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.