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Finding the Fourth Proportional to 713,901.20, 1,068,778.20 and 693,165.20

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Solution

The fourth proportional to 713,901.20, 1,068,778.20 and 693,165.20 is: 1,037,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,901.20 : 1,068,778.20 = 693,165.20 : x
  2. Step 2: Convert to fraction form
    713,901.20/1,068,778.20 = 693,165.20/x
  3. Step 3: Cross multiply
    713,901.20x = 1,068,778.20 × 693,165.20
  4. Step 4: Simplify right side
    713,901.20x = 740,839,854,758.64
  5. Step 5: Solve for x
    x = 740,839,854,758.64/713,901.20
  6. Step 6: Final answer
    x = 1,037,734.43

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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.