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Finding the Fourth Proportional to 587,314.80, 880,972.20 and 547,657.20

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Solution

The fourth proportional to 587,314.80, 880,972.20 and 547,657.20 is: 821,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,314.80 : 880,972.20 = 547,657.20 : x
  2. Step 2: Convert to fraction form
    587,314.80/880,972.20 = 547,657.20/x
  3. Step 3: Cross multiply
    587,314.80x = 880,972.20 × 547,657.20
  4. Step 4: Simplify right side
    587,314.80x = 482,470,768,329.84
  5. Step 5: Solve for x
    x = 482,470,768,329.84/587,314.80
  6. Step 6: Final answer
    x = 821,485.80

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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.