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Finding the Fourth Proportional to 574,354.71, 861,531.75 and 153,619.65

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Solution

The fourth proportional to 574,354.71, 861,531.75 and 153,619.65 is: 230,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,354.71 : 861,531.75 = 153,619.65 : x
  2. Step 2: Convert to fraction form
    574,354.71/861,531.75 = 153,619.65/x
  3. Step 3: Cross multiply
    574,354.71x = 861,531.75 × 153,619.65
  4. Step 4: Simplify right side
    574,354.71x = 132,348,205,898.89
  5. Step 5: Solve for x
    x = 132,348,205,898.89/574,354.71
  6. Step 6: Final answer
    x = 230,429.39

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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.