Home / 935,141.20-1,402,711.80-579,000.40

Finding the Fourth Proportional to 935,141.20, 1,402,711.80 and 579,000.40

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Solution

The fourth proportional to 935,141.20, 1,402,711.80 and 579,000.40 is: 868,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,141.20 : 1,402,711.80 = 579,000.40 : x
  2. Step 2: Convert to fraction form
    935,141.20/1,402,711.80 = 579,000.40/x
  3. Step 3: Cross multiply
    935,141.20x = 1,402,711.80 × 579,000.40
  4. Step 4: Simplify right side
    935,141.20x = 812,170,693,284.72
  5. Step 5: Solve for x
    x = 812,170,693,284.72/935,141.20
  6. Step 6: Final answer
    x = 868,500.60

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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.