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Finding the Fourth Proportional to 551,142.30, 826,713.45 and 177,203.10

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Solution

The fourth proportional to 551,142.30, 826,713.45 and 177,203.10 is: 265,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,142.30 : 826,713.45 = 177,203.10 : x
  2. Step 2: Convert to fraction form
    551,142.30/826,713.45 = 177,203.10/x
  3. Step 3: Cross multiply
    551,142.30x = 826,713.45 × 177,203.10
  4. Step 4: Simplify right side
    551,142.30x = 146,496,186,151.70
  5. Step 5: Solve for x
    x = 146,496,186,151.70/551,142.30
  6. Step 6: Final answer
    x = 265,804.65

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Similar ratio
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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.