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Finding the Fourth Proportional to 261,398.40, 392,389.20 and 244,266.90

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Solution

The fourth proportional to 261,398.40, 392,389.20 and 244,266.90 is: 366,672.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,398.40 : 392,389.20 = 244,266.90 : x
  2. Step 2: Convert to fraction form
    261,398.40/392,389.20 = 244,266.90/x
  3. Step 3: Cross multiply
    261,398.40x = 392,389.20 × 244,266.90
  4. Step 4: Simplify right side
    261,398.40x = 95,847,693,477.48
  5. Step 5: Solve for x
    x = 95,847,693,477.48/261,398.40
  6. Step 6: Final answer
    x = 366,672.84

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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.