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Finding the Fourth Proportional to 713,891.70, 1,068,763.95 and 693,155.70

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Solution

The fourth proportional to 713,891.70, 1,068,763.95 and 693,155.70 is: 1,037,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,891.70 : 1,068,763.95 = 693,155.70 : x
  2. Step 2: Convert to fraction form
    713,891.70/1,068,763.95 = 693,155.70/x
  3. Step 3: Cross multiply
    713,891.70x = 1,068,763.95 × 693,155.70
  4. Step 4: Simplify right side
    713,891.70x = 740,819,823,897.02
  5. Step 5: Solve for x
    x = 740,819,823,897.02/713,891.70
  6. Step 6: Final answer
    x = 1,037,720.18

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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.