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Finding the Fourth Proportional to 404,548,696.20, 606,823,044.30 and 145,772,358.60

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Solution

The fourth proportional to 404,548,696.20, 606,823,044.30 and 145,772,358.60 is: 218,658,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,548,696.20 : 606,823,044.30 = 145,772,358.60 : x
  2. Step 2: Convert to fraction form
    404,548,696.20/606,823,044.30 = 145,772,358.60/x
  3. Step 3: Cross multiply
    404,548,696.20x = 606,823,044.30 × 145,772,358.60
  4. Step 4: Simplify right side
    404,548,696.20x = 88,458,026,420,443,280
  5. Step 5: Solve for x
    x = 88,458,026,420,443,280/404,548,696.20
  6. Step 6: Final answer
    x = 218,658,537.90

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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.