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Finding the Fourth Proportional to 650,892,507.22, 898,243,494.62 and 368,693,541.78

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Solution

The fourth proportional to 650,892,507.22, 898,243,494.62 and 368,693,541.78 is: 508,803,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,892,507.22 : 898,243,494.62 = 368,693,541.78 : x
  2. Step 2: Convert to fraction form
    650,892,507.22/898,243,494.62 = 368,693,541.78/x
  3. Step 3: Cross multiply
    650,892,507.22x = 898,243,494.62 × 368,693,541.78
  4. Step 4: Simplify right side
    650,892,507.22x = 331,176,575,412,292,160
  5. Step 5: Solve for x
    x = 331,176,575,412,292,160/650,892,507.22
  6. Step 6: Final answer
    x = 508,803,791.32

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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.