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Finding the Fourth Proportional to 629,858,712.40, 944,788,068.60 and 323,748,696.40

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Solution

The fourth proportional to 629,858,712.40, 944,788,068.60 and 323,748,696.40 is: 485,623,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,712.40 : 944,788,068.60 = 323,748,696.40 : x
  2. Step 2: Convert to fraction form
    629,858,712.40/944,788,068.60 = 323,748,696.40/x
  3. Step 3: Cross multiply
    629,858,712.40x = 944,788,068.60 × 323,748,696.40
  4. Step 4: Simplify right side
    629,858,712.40x = 305,873,905,583,523,776
  5. Step 5: Solve for x
    x = 305,873,905,583,523,776/629,858,712.40
  6. Step 6: Final answer
    x = 485,623,044.60

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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.