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Finding the Fourth Proportional to 587,368.20, 881,052.30 and 447,400.20

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Solution

The fourth proportional to 587,368.20, 881,052.30 and 447,400.20 is: 671,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,368.20 : 881,052.30 = 447,400.20 : x
  2. Step 2: Convert to fraction form
    587,368.20/881,052.30 = 447,400.20/x
  3. Step 3: Cross multiply
    587,368.20x = 881,052.30 × 447,400.20
  4. Step 4: Simplify right side
    587,368.20x = 394,182,975,230.46
  5. Step 5: Solve for x
    x = 394,182,975,230.46/587,368.20
  6. Step 6: Final answer
    x = 671,100.30

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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.