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Finding the Fourth Proportional to 258,281.88, 386,289.69 and 230,018.13

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Solution

The fourth proportional to 258,281.88, 386,289.69 and 230,018.13 is: 344,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,281.88 : 386,289.69 = 230,018.13 : x
  2. Step 2: Convert to fraction form
    258,281.88/386,289.69 = 230,018.13/x
  3. Step 3: Cross multiply
    258,281.88x = 386,289.69 × 230,018.13
  4. Step 4: Simplify right side
    258,281.88x = 88,853,632,132.08
  5. Step 5: Solve for x
    x = 88,853,632,132.08/258,281.88
  6. Step 6: Final answer
    x = 344,018.06

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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.