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Finding the Fourth Proportional to 708,672,043.20, 1,063,008,064.80 and 624,491,788.80

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Solution

The fourth proportional to 708,672,043.20, 1,063,008,064.80 and 624,491,788.80 is: 936,737,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,672,043.20 : 1,063,008,064.80 = 624,491,788.80 : x
  2. Step 2: Convert to fraction form
    708,672,043.20/1,063,008,064.80 = 624,491,788.80/x
  3. Step 3: Cross multiply
    708,672,043.20x = 1,063,008,064.80 × 624,491,788.80
  4. Step 4: Simplify right side
    708,672,043.20x = 663,839,807,895,778,176
  5. Step 5: Solve for x
    x = 663,839,807,895,778,176/708,672,043.20
  6. Step 6: Final answer
    x = 936,737,683.20

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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.