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Finding the Fourth Proportional to 541,801.20, 812,701.80 and 276,080.70

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Solution

The fourth proportional to 541,801.20, 812,701.80 and 276,080.70 is: 414,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,801.20 : 812,701.80 = 276,080.70 : x
  2. Step 2: Convert to fraction form
    541,801.20/812,701.80 = 276,080.70/x
  3. Step 3: Cross multiply
    541,801.20x = 812,701.80 × 276,080.70
  4. Step 4: Simplify right side
    541,801.20x = 224,371,281,835.26
  5. Step 5: Solve for x
    x = 224,371,281,835.26/541,801.20
  6. Step 6: Final answer
    x = 414,121.05

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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.