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Finding the Fourth Proportional to 539,408.60, 809,112.90 and 532,410.20

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Solution

The fourth proportional to 539,408.60, 809,112.90 and 532,410.20 is: 798,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,408.60 : 809,112.90 = 532,410.20 : x
  2. Step 2: Convert to fraction form
    539,408.60/809,112.90 = 532,410.20/x
  3. Step 3: Cross multiply
    539,408.60x = 809,112.90 × 532,410.20
  4. Step 4: Simplify right side
    539,408.60x = 430,779,960,911.58
  5. Step 5: Solve for x
    x = 430,779,960,911.58/539,408.60
  6. Step 6: Final answer
    x = 798,615.30

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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.