Home / 261,010.32-391,490.18-83,469.66

Finding the Fourth Proportional to 261,010.32, 391,490.18 and 83,469.66

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Solution

The fourth proportional to 261,010.32, 391,490.18 and 83,469.66 is: 125,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,010.32 : 391,490.18 = 83,469.66 : x
  2. Step 2: Convert to fraction form
    261,010.32/391,490.18 = 83,469.66/x
  3. Step 3: Cross multiply
    261,010.32x = 391,490.18 × 83,469.66
  4. Step 4: Simplify right side
    261,010.32x = 32,677,552,217.94
  5. Step 5: Solve for x
    x = 32,677,552,217.94/261,010.32
  6. Step 6: Final answer
    x = 125,196.40

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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.