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Finding the Fourth Proportional to 710,972.48, 981,153.72 and 424,517.60

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Solution

The fourth proportional to 710,972.48, 981,153.72 and 424,517.60 is: 585,841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,972.48 : 981,153.72 = 424,517.60 : x
  2. Step 2: Convert to fraction form
    710,972.48/981,153.72 = 424,517.60/x
  3. Step 3: Cross multiply
    710,972.48x = 981,153.72 × 424,517.60
  4. Step 4: Simplify right side
    710,972.48x = 416,517,022,445.47
  5. Step 5: Solve for x
    x = 416,517,022,445.47/710,972.48
  6. Step 6: Final answer
    x = 585,841.27

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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.