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Finding the Fourth Proportional to 715,663,846.60, 1,073,495,769.90 and 579,614,950.60

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Solution

The fourth proportional to 715,663,846.60, 1,073,495,769.90 and 579,614,950.60 is: 869,422,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,663,846.60 : 1,073,495,769.90 = 579,614,950.60 : x
  2. Step 2: Convert to fraction form
    715,663,846.60/1,073,495,769.90 = 579,614,950.60/x
  3. Step 3: Cross multiply
    715,663,846.60x = 1,073,495,769.90 × 579,614,950.60
  4. Step 4: Simplify right side
    715,663,846.60x = 622,214,197,639,897,472
  5. Step 5: Solve for x
    x = 622,214,197,639,897,472/715,663,846.60
  6. Step 6: Final answer
    x = 869,422,425.90

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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.