Home / 819,572.46-1,131,005.16-457,000.62

Finding the Fourth Proportional to 819,572.46, 1,131,005.16 and 457,000.62

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Solution

The fourth proportional to 819,572.46, 1,131,005.16 and 457,000.62 is: 630,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,572.46 : 1,131,005.16 = 457,000.62 : x
  2. Step 2: Convert to fraction form
    819,572.46/1,131,005.16 = 457,000.62/x
  3. Step 3: Cross multiply
    819,572.46x = 1,131,005.16 × 457,000.62
  4. Step 4: Simplify right side
    819,572.46x = 516,870,059,343.20
  5. Step 5: Solve for x
    x = 516,870,059,343.20/819,572.46
  6. Step 6: Final answer
    x = 630,658.16

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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.