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Finding the Fourth Proportional to 617,793.60, 926,690.40 and 550,142.40

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Solution

The fourth proportional to 617,793.60, 926,690.40 and 550,142.40 is: 825,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,793.60 : 926,690.40 = 550,142.40 : x
  2. Step 2: Convert to fraction form
    617,793.60/926,690.40 = 550,142.40/x
  3. Step 3: Cross multiply
    617,793.60x = 926,690.40 × 550,142.40
  4. Step 4: Simplify right side
    617,793.60x = 509,811,680,712.96
  5. Step 5: Solve for x
    x = 509,811,680,712.96/617,793.60
  6. Step 6: Final answer
    x = 825,213.60

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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.