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Finding the Fourth Proportional to 574,313.85, 861,470.82 and 153,578.79

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Solution

The fourth proportional to 574,313.85, 861,470.82 and 153,578.79 is: 230,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,313.85 : 861,470.82 = 153,578.79 : x
  2. Step 2: Convert to fraction form
    574,313.85/861,470.82 = 153,578.79/x
  3. Step 3: Cross multiply
    574,313.85x = 861,470.82 × 153,578.79
  4. Step 4: Simplify right side
    574,313.85x = 132,303,646,155.91
  5. Step 5: Solve for x
    x = 132,303,646,155.91/574,313.85
  6. Step 6: Final answer
    x = 230,368.20

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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.