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Finding the Fourth Proportional to 624,029,563.20, 936,044,344.80 and 469,840,814.40

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Solution

The fourth proportional to 624,029,563.20, 936,044,344.80 and 469,840,814.40 is: 704,761,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,029,563.20 : 936,044,344.80 = 469,840,814.40 : x
  2. Step 2: Convert to fraction form
    624,029,563.20/936,044,344.80 = 469,840,814.40/x
  3. Step 3: Cross multiply
    624,029,563.20x = 936,044,344.80 × 469,840,814.40
  4. Step 4: Simplify right side
    624,029,563.20x = 439,791,837,275,346,368
  5. Step 5: Solve for x
    x = 439,791,837,275,346,368/624,029,563.20
  6. Step 6: Final answer
    x = 704,761,221.60

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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.