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Finding the Fourth Proportional to 709,504,578.33, 972,005,034.92 and 682,977,755.49

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Solution

The fourth proportional to 709,504,578.33, 972,005,034.92 and 682,977,755.49 is: 935,663,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,504,578.33 : 972,005,034.92 = 682,977,755.49 : x
  2. Step 2: Convert to fraction form
    709,504,578.33/972,005,034.92 = 682,977,755.49/x
  3. Step 3: Cross multiply
    709,504,578.33x = 972,005,034.92 × 682,977,755.49
  4. Step 4: Simplify right side
    709,504,578.33x = 663,857,817,071,225,728
  5. Step 5: Solve for x
    x = 663,857,817,071,225,728/709,504,578.33
  6. Step 6: Final answer
    x = 935,663,894.70

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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.