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Finding the Fourth Proportional to 567,904.10, 851,856.15 and 408,471.80

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Solution

The fourth proportional to 567,904.10, 851,856.15 and 408,471.80 is: 612,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,904.10 : 851,856.15 = 408,471.80 : x
  2. Step 2: Convert to fraction form
    567,904.10/851,856.15 = 408,471.80/x
  3. Step 3: Cross multiply
    567,904.10x = 851,856.15 × 408,471.80
  4. Step 4: Simplify right side
    567,904.10x = 347,959,214,931.57
  5. Step 5: Solve for x
    x = 347,959,214,931.57/567,904.10
  6. Step 6: Final answer
    x = 612,707.70

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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.