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Finding the Fourth Proportional to 314,627.80, 472,248.90 and 157,034.20

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Solution

The fourth proportional to 314,627.80, 472,248.90 and 157,034.20 is: 235,704.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,627.80 : 472,248.90 = 157,034.20 : x
  2. Step 2: Convert to fraction form
    314,627.80/472,248.90 = 157,034.20/x
  3. Step 3: Cross multiply
    314,627.80x = 472,248.90 × 157,034.20
  4. Step 4: Simplify right side
    314,627.80x = 74,159,228,212.38
  5. Step 5: Solve for x
    x = 74,159,228,212.38/314,627.80
  6. Step 6: Final answer
    x = 235,704.63

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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.