Home / 614,293.20-921,439.80-579,301.20

Finding the Fourth Proportional to 614,293.20, 921,439.80 and 579,301.20

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Solution

The fourth proportional to 614,293.20, 921,439.80 and 579,301.20 is: 868,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,293.20 : 921,439.80 = 579,301.20 : x
  2. Step 2: Convert to fraction form
    614,293.20/921,439.80 = 579,301.20/x
  3. Step 3: Cross multiply
    614,293.20x = 921,439.80 × 579,301.20
  4. Step 4: Simplify right side
    614,293.20x = 533,791,181,867.76
  5. Step 5: Solve for x
    x = 533,791,181,867.76/614,293.20
  6. Step 6: Final answer
    x = 868,951.80

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Half scale
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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.