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Finding the Fourth Proportional to 266,117.20, 399,175.80 and 176,304.40

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Solution

The fourth proportional to 266,117.20, 399,175.80 and 176,304.40 is: 264,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,117.20 : 399,175.80 = 176,304.40 : x
  2. Step 2: Convert to fraction form
    266,117.20/399,175.80 = 176,304.40/x
  3. Step 3: Cross multiply
    266,117.20x = 399,175.80 × 176,304.40
  4. Step 4: Simplify right side
    266,117.20x = 70,376,449,913.52
  5. Step 5: Solve for x
    x = 70,376,449,913.52/266,117.20
  6. Step 6: Final answer
    x = 264,456.60

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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.