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Finding the Fourth Proportional to 943,281,011.85, 1,414,921,517.78 and 943,281,011.85

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Solution

The fourth proportional to 943,281,011.85, 1,414,921,517.78 and 943,281,011.85 is: 1,414,921,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,281,011.85 : 1,414,921,517.78 = 943,281,011.85 : x
  2. Step 2: Convert to fraction form
    943,281,011.85/1,414,921,517.78 = 943,281,011.85/x
  3. Step 3: Cross multiply
    943,281,011.85x = 1,414,921,517.78 × 943,281,011.85
  4. Step 4: Simplify right side
    943,281,011.85x = 1,334,668,600,979,856,128
  5. Step 5: Solve for x
    x = 1,334,668,600,979,856,128/943,281,011.85
  6. Step 6: Final answer
    x = 1,414,921,517.78

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Double scale
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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.