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Finding the Fourth Proportional to 316,261.70, 474,249.92 and 156,275.26

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Solution

The fourth proportional to 316,261.70, 474,249.92 and 156,275.26 is: 234,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,261.70 : 474,249.92 = 156,275.26 : x
  2. Step 2: Convert to fraction form
    316,261.70/474,249.92 = 156,275.26/x
  3. Step 3: Cross multiply
    316,261.70x = 474,249.92 × 156,275.26
  4. Step 4: Simplify right side
    316,261.70x = 74,113,526,400.35
  5. Step 5: Solve for x
    x = 74,113,526,400.35/316,261.70
  6. Step 6: Final answer
    x = 234,342.40

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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.