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Finding the Fourth Proportional to 887,681,390.70, 1,245,474,924.90 and 887,681,390.70

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Solution

The fourth proportional to 887,681,390.70, 1,245,474,924.90 and 887,681,390.70 is: 1,245,474,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,681,390.70 : 1,245,474,924.90 = 887,681,390.70 : x
  2. Step 2: Convert to fraction form
    887,681,390.70/1,245,474,924.90 = 887,681,390.70/x
  3. Step 3: Cross multiply
    887,681,390.70x = 1,245,474,924.90 × 887,681,390.70
  4. Step 4: Simplify right side
    887,681,390.70x = 1,105,584,913,417,210,240
  5. Step 5: Solve for x
    x = 1,105,584,913,417,210,240/887,681,390.70
  6. Step 6: Final answer
    x = 1,245,474,924.90

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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.