Home / 515,144.04-772,712.28-160,157.40

Finding the Fourth Proportional to 515,144.04, 772,712.28 and 160,157.40

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Solution

The fourth proportional to 515,144.04, 772,712.28 and 160,157.40 is: 240,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,144.04 : 772,712.28 = 160,157.40 : x
  2. Step 2: Convert to fraction form
    515,144.04/772,712.28 = 160,157.40/x
  3. Step 3: Cross multiply
    515,144.04x = 772,712.28 × 160,157.40
  4. Step 4: Simplify right side
    515,144.04x = 123,755,589,712.87
  5. Step 5: Solve for x
    x = 123,755,589,712.87/515,144.04
  6. Step 6: Final answer
    x = 240,234.92

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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.