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Finding the Fourth Proportional to 270,707.60, 406,061.40 and 165,731.60

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Solution

The fourth proportional to 270,707.60, 406,061.40 and 165,731.60 is: 248,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,707.60 : 406,061.40 = 165,731.60 : x
  2. Step 2: Convert to fraction form
    270,707.60/406,061.40 = 165,731.60/x
  3. Step 3: Cross multiply
    270,707.60x = 406,061.40 × 165,731.60
  4. Step 4: Simplify right side
    270,707.60x = 67,297,205,520.24
  5. Step 5: Solve for x
    x = 67,297,205,520.24/270,707.60
  6. Step 6: Final answer
    x = 248,597.40

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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.