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Finding the Fourth Proportional to 517,790.22, 714,182.41 and 345,621.38

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Solution

The fourth proportional to 517,790.22, 714,182.41 and 345,621.38 is: 476,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,790.22 : 714,182.41 = 345,621.38 : x
  2. Step 2: Convert to fraction form
    517,790.22/714,182.41 = 345,621.38/x
  3. Step 3: Cross multiply
    517,790.22x = 714,182.41 × 345,621.38
  4. Step 4: Simplify right side
    517,790.22x = 246,836,706,545.01
  5. Step 5: Solve for x
    x = 246,836,706,545.01/517,790.22
  6. Step 6: Final answer
    x = 476,711.80

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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.