Home / 515,089.20-772,691.40-160,100.40

Finding the Fourth Proportional to 515,089.20, 772,691.40 and 160,100.40

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Solution

The fourth proportional to 515,089.20, 772,691.40 and 160,100.40 is: 240,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,089.20 : 772,691.40 = 160,100.40 : x
  2. Step 2: Convert to fraction form
    515,089.20/772,691.40 = 160,100.40/x
  3. Step 3: Cross multiply
    515,089.20x = 772,691.40 × 160,100.40
  4. Step 4: Simplify right side
    515,089.20x = 123,708,202,216.56
  5. Step 5: Solve for x
    x = 123,708,202,216.56/515,089.20
  6. Step 6: Final answer
    x = 240,168.50

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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.