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Finding the Fourth Proportional to 661,648,443.56, 992,580,473.52 and 195,357,003.11

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Solution

The fourth proportional to 661,648,443.56, 992,580,473.52 and 195,357,003.11 is: 293,067,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,648,443.56 : 992,580,473.52 = 195,357,003.11 : x
  2. Step 2: Convert to fraction form
    661,648,443.56/992,580,473.52 = 195,357,003.11/x
  3. Step 3: Cross multiply
    661,648,443.56x = 992,580,473.52 × 195,357,003.11
  4. Step 4: Simplify right side
    661,648,443.56x = 193,907,546,652,371,936
  5. Step 5: Solve for x
    x = 193,907,546,652,371,936/661,648,443.56
  6. Step 6: Final answer
    x = 293,067,335.89

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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.