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Finding the Fourth Proportional to 560,314.96, 840,279.28 and 181,138.56

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Solution

The fourth proportional to 560,314.96, 840,279.28 and 181,138.56 is: 271,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,314.96 : 840,279.28 = 181,138.56 : x
  2. Step 2: Convert to fraction form
    560,314.96/840,279.28 = 181,138.56/x
  3. Step 3: Cross multiply
    560,314.96x = 840,279.28 × 181,138.56
  4. Step 4: Simplify right side
    560,314.96x = 152,206,978,777.04
  5. Step 5: Solve for x
    x = 152,206,978,777.04/560,314.96
  6. Step 6: Final answer
    x = 271,645.40

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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.