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Finding the Fourth Proportional to 872,232.60, 1,308,348.90 and 573,634.20

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Solution

The fourth proportional to 872,232.60, 1,308,348.90 and 573,634.20 is: 860,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,232.60 : 1,308,348.90 = 573,634.20 : x
  2. Step 2: Convert to fraction form
    872,232.60/1,308,348.90 = 573,634.20/x
  3. Step 3: Cross multiply
    872,232.60x = 1,308,348.90 × 573,634.20
  4. Step 4: Simplify right side
    872,232.60x = 750,513,674,572.38
  5. Step 5: Solve for x
    x = 750,513,674,572.38/872,232.60
  6. Step 6: Final answer
    x = 860,451.30

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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.