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Finding the Fourth Proportional to 584,741.80, 877,112.70 and 285,414.40

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Solution

The fourth proportional to 584,741.80, 877,112.70 and 285,414.40 is: 428,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,741.80 : 877,112.70 = 285,414.40 : x
  2. Step 2: Convert to fraction form
    584,741.80/877,112.70 = 285,414.40/x
  3. Step 3: Cross multiply
    584,741.80x = 877,112.70 × 285,414.40
  4. Step 4: Simplify right side
    584,741.80x = 250,340,595,002.88
  5. Step 5: Solve for x
    x = 250,340,595,002.88/584,741.80
  6. Step 6: Final answer
    x = 428,121.60

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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.