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Finding the Fourth Proportional to 293,201.20, 439,801.80 and 266,082.40

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Solution

The fourth proportional to 293,201.20, 439,801.80 and 266,082.40 is: 399,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,201.20 : 439,801.80 = 266,082.40 : x
  2. Step 2: Convert to fraction form
    293,201.20/439,801.80 = 266,082.40/x
  3. Step 3: Cross multiply
    293,201.20x = 439,801.80 × 266,082.40
  4. Step 4: Simplify right side
    293,201.20x = 117,023,518,468.32
  5. Step 5: Solve for x
    x = 117,023,518,468.32/293,201.20
  6. Step 6: Final answer
    x = 399,123.60

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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.