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Finding the Fourth Proportional to 887,681,389.70, 1,245,474,923.50 and 887,681,389.70

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Solution

The fourth proportional to 887,681,389.70, 1,245,474,923.50 and 887,681,389.70 is: 1,245,474,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,681,389.70 : 1,245,474,923.50 = 887,681,389.70 : x
  2. Step 2: Convert to fraction form
    887,681,389.70/1,245,474,923.50 = 887,681,389.70/x
  3. Step 3: Cross multiply
    887,681,389.70x = 1,245,474,923.50 × 887,681,389.70
  4. Step 4: Simplify right side
    887,681,389.70x = 1,105,584,910,928,981,248
  5. Step 5: Solve for x
    x = 1,105,584,910,928,981,248/887,681,389.70
  6. Step 6: Final answer
    x = 1,245,474,923.50

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1.5x scale

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.