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Finding the Fourth Proportional to 371,562.80, 512,753.76 and 201,796.92

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Solution

The fourth proportional to 371,562.80, 512,753.76 and 201,796.92 is: 278,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,562.80 : 512,753.76 = 201,796.92 : x
  2. Step 2: Convert to fraction form
    371,562.80/512,753.76 = 201,796.92/x
  3. Step 3: Cross multiply
    371,562.80x = 512,753.76 × 201,796.92
  4. Step 4: Simplify right side
    371,562.80x = 103,472,129,486.42
  5. Step 5: Solve for x
    x = 103,472,129,486.42/371,562.80
  6. Step 6: Final answer
    x = 278,478.18

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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.