Home / 261,020.20-391,530.30-176,820.70

Finding the Fourth Proportional to 261,020.20, 391,530.30 and 176,820.70

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Solution

The fourth proportional to 261,020.20, 391,530.30 and 176,820.70 is: 265,231.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,020.20 : 391,530.30 = 176,820.70 : x
  2. Step 2: Convert to fraction form
    261,020.20/391,530.30 = 176,820.70/x
  3. Step 3: Cross multiply
    261,020.20x = 391,530.30 × 176,820.70
  4. Step 4: Simplify right side
    261,020.20x = 69,230,661,717.21
  5. Step 5: Solve for x
    x = 69,230,661,717.21/261,020.20
  6. Step 6: Final answer
    x = 265,231.05

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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.