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Finding the Fourth Proportional to 587,409.80, 881,114.70 and 547,752.20

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Solution

The fourth proportional to 587,409.80, 881,114.70 and 547,752.20 is: 821,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,409.80 : 881,114.70 = 547,752.20 : x
  2. Step 2: Convert to fraction form
    587,409.80/881,114.70 = 547,752.20/x
  3. Step 3: Cross multiply
    587,409.80x = 881,114.70 × 547,752.20
  4. Step 4: Simplify right side
    587,409.80x = 482,632,515,377.34
  5. Step 5: Solve for x
    x = 482,632,515,377.34/587,409.80
  6. Step 6: Final answer
    x = 821,628.30

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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.