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Finding the Fourth Proportional to 654,171.20, 981,256.80 and 614,772.80

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Solution

The fourth proportional to 654,171.20, 981,256.80 and 614,772.80 is: 922,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,171.20 : 981,256.80 = 614,772.80 : x
  2. Step 2: Convert to fraction form
    654,171.20/981,256.80 = 614,772.80/x
  3. Step 3: Cross multiply
    654,171.20x = 981,256.80 × 614,772.80
  4. Step 4: Simplify right side
    654,171.20x = 603,249,990,455.04
  5. Step 5: Solve for x
    x = 603,249,990,455.04/654,171.20
  6. Step 6: Final answer
    x = 922,159.20

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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.