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Finding the Fourth Proportional to 504,009,890.72, 695,687,375.38 and 292,370,204.68

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Solution

The fourth proportional to 504,009,890.72, 695,687,375.38 and 292,370,204.68 is: 403,560,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,009,890.72 : 695,687,375.38 = 292,370,204.68 : x
  2. Step 2: Convert to fraction form
    504,009,890.72/695,687,375.38 = 292,370,204.68/x
  3. Step 3: Cross multiply
    504,009,890.72x = 695,687,375.38 × 292,370,204.68
  4. Step 4: Simplify right side
    504,009,890.72x = 203,398,260,333,142,592
  5. Step 5: Solve for x
    x = 203,398,260,333,142,592/504,009,890.72
  6. Step 6: Final answer
    x = 403,560,057.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.