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Finding the Fourth Proportional to 866,096.80, 1,195,165.13 and 478,889.82

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Solution

The fourth proportional to 866,096.80, 1,195,165.13 and 478,889.82 is: 660,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,096.80 : 1,195,165.13 = 478,889.82 : x
  2. Step 2: Convert to fraction form
    866,096.80/1,195,165.13 = 478,889.82/x
  3. Step 3: Cross multiply
    866,096.80x = 1,195,165.13 × 478,889.82
  4. Step 4: Simplify right side
    866,096.80x = 572,352,411,581.53
  5. Step 5: Solve for x
    x = 572,352,411,581.53/866,096.80
  6. Step 6: Final answer
    x = 660,841.15

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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.