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Finding the Fourth Proportional to 571,000.40, 856,500.60 and 176,965.20

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Solution

The fourth proportional to 571,000.40, 856,500.60 and 176,965.20 is: 265,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,000.40 : 856,500.60 = 176,965.20 : x
  2. Step 2: Convert to fraction form
    571,000.40/856,500.60 = 176,965.20/x
  3. Step 3: Cross multiply
    571,000.40x = 856,500.60 × 176,965.20
  4. Step 4: Simplify right side
    571,000.40x = 151,570,799,979.12
  5. Step 5: Solve for x
    x = 151,570,799,979.12/571,000.40
  6. Step 6: Final answer
    x = 265,447.80

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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.