Home / 257,495.34-386,169.18-77,598.18

Finding the Fourth Proportional to 257,495.34, 386,169.18 and 77,598.18

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Solution

The fourth proportional to 257,495.34, 386,169.18 and 77,598.18 is: 116,375.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,495.34 : 386,169.18 = 77,598.18 : x
  2. Step 2: Convert to fraction form
    257,495.34/386,169.18 = 77,598.18/x
  3. Step 3: Cross multiply
    257,495.34x = 386,169.18 × 77,598.18
  4. Step 4: Simplify right side
    257,495.34x = 29,966,025,540.09
  5. Step 5: Solve for x
    x = 29,966,025,540.09/257,495.34
  6. Step 6: Final answer
    x = 116,375.02

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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.