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Finding the Fourth Proportional to 261,386.40, 392,371.20 and 244,254.90

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Solution

The fourth proportional to 261,386.40, 392,371.20 and 244,254.90 is: 366,654.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,386.40 : 392,371.20 = 244,254.90 : x
  2. Step 2: Convert to fraction form
    261,386.40/392,371.20 = 244,254.90/x
  3. Step 3: Cross multiply
    261,386.40x = 392,371.20 × 244,254.90
  4. Step 4: Simplify right side
    261,386.40x = 95,838,588,218.88
  5. Step 5: Solve for x
    x = 95,838,588,218.88/261,386.40
  6. Step 6: Final answer
    x = 366,654.84

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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.