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Finding the Fourth Proportional to 4,983,280.70, 6,981,316.90 and 4,983,280.70

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Solution

The fourth proportional to 4,983,280.70, 6,981,316.90 and 4,983,280.70 is: 6,981,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983,280.70 : 6,981,316.90 = 4,983,280.70 : x
  2. Step 2: Convert to fraction form
    4,983,280.70/6,981,316.90 = 4,983,280.70/x
  3. Step 3: Cross multiply
    4,983,280.70x = 6,981,316.90 × 4,983,280.70
  4. Step 4: Simplify right side
    4,983,280.70x = 34,789,861,768,353.83
  5. Step 5: Solve for x
    x = 34,789,861,768,353.83/4,983,280.70
  6. Step 6: Final answer
    x = 6,981,316.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.