Home / 819,693.38-1,131,174.68-457,117.66

Finding the Fourth Proportional to 819,693.38, 1,131,174.68 and 457,117.66

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Solution

The fourth proportional to 819,693.38, 1,131,174.68 and 457,117.66 is: 630,821.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,693.38 : 1,131,174.68 = 457,117.66 : x
  2. Step 2: Convert to fraction form
    819,693.38/1,131,174.68 = 457,117.66/x
  3. Step 3: Cross multiply
    819,693.38x = 1,131,174.68 × 457,117.66
  4. Step 4: Simplify right side
    819,693.38x = 517,079,922,772.85
  5. Step 5: Solve for x
    x = 517,079,922,772.85/819,693.38
  6. Step 6: Final answer
    x = 630,821.15

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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.