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Finding the Fourth Proportional to 719,314.67, 992,652.33 and 397,022.55

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Solution

The fourth proportional to 719,314.67, 992,652.33 and 397,022.55 is: 547,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,314.67 : 992,652.33 = 397,022.55 : x
  2. Step 2: Convert to fraction form
    719,314.67/992,652.33 = 397,022.55/x
  3. Step 3: Cross multiply
    719,314.67x = 992,652.33 × 397,022.55
  4. Step 4: Simplify right side
    719,314.67x = 394,105,359,320.04
  5. Step 5: Solve for x
    x = 394,105,359,320.04/719,314.67
  6. Step 6: Final answer
    x = 547,890.06

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.