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Finding the Fourth Proportional to 452,785.71, 624,847.28 and 283,119.15

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Solution

The fourth proportional to 452,785.71, 624,847.28 and 283,119.15 is: 390,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,785.71 : 624,847.28 = 283,119.15 : x
  2. Step 2: Convert to fraction form
    452,785.71/624,847.28 = 283,119.15/x
  3. Step 3: Cross multiply
    452,785.71x = 624,847.28 × 283,119.15
  4. Step 4: Simplify right side
    452,785.71x = 176,906,229,377.82
  5. Step 5: Solve for x
    x = 176,906,229,377.82/452,785.71
  6. Step 6: Final answer
    x = 390,706.30

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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.