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Finding the Fourth Proportional to 551,267.80, 826,901.70 and 177,328.60

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Solution

The fourth proportional to 551,267.80, 826,901.70 and 177,328.60 is: 265,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,267.80 : 826,901.70 = 177,328.60 : x
  2. Step 2: Convert to fraction form
    551,267.80/826,901.70 = 177,328.60/x
  3. Step 3: Cross multiply
    551,267.80x = 826,901.70 × 177,328.60
  4. Step 4: Simplify right side
    551,267.80x = 146,633,320,798.62
  5. Step 5: Solve for x
    x = 146,633,320,798.62/551,267.80
  6. Step 6: Final answer
    x = 265,992.90

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Double scale
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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.