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Finding the Fourth Proportional to 649,654,464.60, 974,481,696.90 and 578,228,794.20

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Solution

The fourth proportional to 649,654,464.60, 974,481,696.90 and 578,228,794.20 is: 867,343,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,654,464.60 : 974,481,696.90 = 578,228,794.20 : x
  2. Step 2: Convert to fraction form
    649,654,464.60/974,481,696.90 = 578,228,794.20/x
  3. Step 3: Cross multiply
    649,654,464.60x = 974,481,696.90 × 578,228,794.20
  4. Step 4: Simplify right side
    649,654,464.60x = 563,473,376,568,456,896
  5. Step 5: Solve for x
    x = 563,473,376,568,456,896/649,654,464.60
  6. Step 6: Final answer
    x = 867,343,191.30

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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.