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Finding the Fourth Proportional to 710,954.95, 981,129.50 and 424,500.07

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Solution

The fourth proportional to 710,954.95, 981,129.50 and 424,500.07 is: 585,817.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,954.95 : 981,129.50 = 424,500.07 : x
  2. Step 2: Convert to fraction form
    710,954.95/981,129.50 = 424,500.07/x
  3. Step 3: Cross multiply
    710,954.95x = 981,129.50 × 424,500.07
  4. Step 4: Simplify right side
    710,954.95x = 416,489,541,429.07
  5. Step 5: Solve for x
    x = 416,489,541,429.07/710,954.95
  6. Step 6: Final answer
    x = 585,817.06

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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.