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Finding the Fourth Proportional to 709,125,668.40, 971,497,634.22 and 682,607,670

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Solution

The fourth proportional to 709,125,668.40, 971,497,634.22 and 682,607,670 is: 935,168,145.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,125,668.40 : 971,497,634.22 = 682,607,670 : x
  2. Step 2: Convert to fraction form
    709,125,668.40/971,497,634.22 = 682,607,670/x
  3. Step 3: Cross multiply
    709,125,668.40x = 971,497,634.22 × 682,607,670
  4. Step 4: Simplify right side
    709,125,668.40x = 663,151,736,505,426,432
  5. Step 5: Solve for x
    x = 663,151,736,505,426,432/709,125,668.40
  6. Step 6: Final answer
    x = 935,168,145.87

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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.