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Finding the Fourth Proportional to 261,738.40, 392,024.40 and 226,746.40

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Solution

The fourth proportional to 261,738.40, 392,024.40 and 226,746.40 is: 339,614.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,738.40 : 392,024.40 = 226,746.40 : x
  2. Step 2: Convert to fraction form
    261,738.40/392,024.40 = 226,746.40/x
  3. Step 3: Cross multiply
    261,738.40x = 392,024.40 × 226,746.40
  4. Step 4: Simplify right side
    261,738.40x = 88,890,121,412.16
  5. Step 5: Solve for x
    x = 88,890,121,412.16/261,738.40
  6. Step 6: Final answer
    x = 339,614.37

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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.