Home / 693,419.40-1,040,129.10-614,687.40

Finding the Fourth Proportional to 693,419.40, 1,040,129.10 and 614,687.40

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Solution

The fourth proportional to 693,419.40, 1,040,129.10 and 614,687.40 is: 922,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,419.40 : 1,040,129.10 = 614,687.40 : x
  2. Step 2: Convert to fraction form
    693,419.40/1,040,129.10 = 614,687.40/x
  3. Step 3: Cross multiply
    693,419.40x = 1,040,129.10 × 614,687.40
  4. Step 4: Simplify right side
    693,419.40x = 639,354,252,143.34
  5. Step 5: Solve for x
    x = 639,354,252,143.34/693,419.40
  6. Step 6: Final answer
    x = 922,031.10

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Double scale
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Similar ratio
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1.5x scale

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.