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Finding the Fourth Proportional to 713,892.70, 1,068,765.45 and 693,156.70

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Solution

The fourth proportional to 713,892.70, 1,068,765.45 and 693,156.70 is: 1,037,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,892.70 : 1,068,765.45 = 693,156.70 : x
  2. Step 2: Convert to fraction form
    713,892.70/1,068,765.45 = 693,156.70/x
  3. Step 3: Cross multiply
    713,892.70x = 1,068,765.45 × 693,156.70
  4. Step 4: Simplify right side
    713,892.70x = 740,821,932,396.02
  5. Step 5: Solve for x
    x = 740,821,932,396.02/713,892.70
  6. Step 6: Final answer
    x = 1,037,721.68

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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.