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Finding the Fourth Proportional to 546,408.80, 819,613.20 and 530,856.80

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Solution

The fourth proportional to 546,408.80, 819,613.20 and 530,856.80 is: 796,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,408.80 : 819,613.20 = 530,856.80 : x
  2. Step 2: Convert to fraction form
    546,408.80/819,613.20 = 530,856.80/x
  3. Step 3: Cross multiply
    546,408.80x = 819,613.20 × 530,856.80
  4. Step 4: Simplify right side
    546,408.80x = 435,097,240,589.76
  5. Step 5: Solve for x
    x = 435,097,240,589.76/546,408.80
  6. Step 6: Final answer
    x = 796,285.20

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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.