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Finding the Fourth Proportional to 584,440.80, 876,661.20 and 413,198.70

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Solution

The fourth proportional to 584,440.80, 876,661.20 and 413,198.70 is: 619,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,440.80 : 876,661.20 = 413,198.70 : x
  2. Step 2: Convert to fraction form
    584,440.80/876,661.20 = 413,198.70/x
  3. Step 3: Cross multiply
    584,440.80x = 876,661.20 × 413,198.70
  4. Step 4: Simplify right side
    584,440.80x = 362,235,268,180.44
  5. Step 5: Solve for x
    x = 362,235,268,180.44/584,440.80
  6. Step 6: Final answer
    x = 619,798.05

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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.