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Finding the Fourth Proportional to 713,610,003.70, 1,070,415,005.55 and 713,610,003.70

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Solution

The fourth proportional to 713,610,003.70, 1,070,415,005.55 and 713,610,003.70 is: 1,070,415,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,610,003.70 : 1,070,415,005.55 = 713,610,003.70 : x
  2. Step 2: Convert to fraction form
    713,610,003.70/1,070,415,005.55 = 713,610,003.70/x
  3. Step 3: Cross multiply
    713,610,003.70x = 1,070,415,005.55 × 713,610,003.70
  4. Step 4: Simplify right side
    713,610,003.70x = 763,858,856,071,070,976
  5. Step 5: Solve for x
    x = 763,858,856,071,070,976/713,610,003.70
  6. Step 6: Final answer
    x = 1,070,415,005.55

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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.