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Finding the Fourth Proportional to 747,934.20, 1,121,901.30 and 747,934.20

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Solution

The fourth proportional to 747,934.20, 1,121,901.30 and 747,934.20 is: 1,121,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,934.20 : 1,121,901.30 = 747,934.20 : x
  2. Step 2: Convert to fraction form
    747,934.20/1,121,901.30 = 747,934.20/x
  3. Step 3: Cross multiply
    747,934.20x = 1,121,901.30 × 747,934.20
  4. Step 4: Simplify right side
    747,934.20x = 839,108,351,294.46
  5. Step 5: Solve for x
    x = 839,108,351,294.46/747,934.20
  6. Step 6: Final answer
    x = 1,121,901.30

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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.