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Finding the Fourth Proportional to 709,504,583.45, 972,005,041.97 and 682,977,760.61

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Solution

The fourth proportional to 709,504,583.45, 972,005,041.97 and 682,977,760.61 is: 935,663,901.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,504,583.45 : 972,005,041.97 = 682,977,760.61 : x
  2. Step 2: Convert to fraction form
    709,504,583.45/972,005,041.97 = 682,977,760.61/x
  3. Step 3: Cross multiply
    709,504,583.45x = 972,005,041.97 × 682,977,760.61
  4. Step 4: Simplify right side
    709,504,583.45x = 663,857,826,862,884,864
  5. Step 5: Solve for x
    x = 663,857,826,862,884,864/709,504,583.45
  6. Step 6: Final answer
    x = 935,663,901.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.