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Finding the Fourth Proportional to 571,035.40, 856,553.10 and 177,000.20

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Solution

The fourth proportional to 571,035.40, 856,553.10 and 177,000.20 is: 265,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,035.40 : 856,553.10 = 177,000.20 : x
  2. Step 2: Convert to fraction form
    571,035.40/856,553.10 = 177,000.20/x
  3. Step 3: Cross multiply
    571,035.40x = 856,553.10 × 177,000.20
  4. Step 4: Simplify right side
    571,035.40x = 151,610,070,010.62
  5. Step 5: Solve for x
    x = 151,610,070,010.62/571,035.40
  6. Step 6: Final answer
    x = 265,500.30

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Half scale
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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.