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Finding the Fourth Proportional to 710,967.36, 981,146.61 and 424,512.48

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Solution

The fourth proportional to 710,967.36, 981,146.61 and 424,512.48 is: 585,834.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,967.36 : 981,146.61 = 424,512.48 : x
  2. Step 2: Convert to fraction form
    710,967.36/981,146.61 = 424,512.48/x
  3. Step 3: Cross multiply
    710,967.36x = 981,146.61 × 424,512.48
  4. Step 4: Simplify right side
    710,967.36x = 416,508,980,654.69
  5. Step 5: Solve for x
    x = 416,508,980,654.69/710,967.36
  6. Step 6: Final answer
    x = 585,834.18

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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.