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Finding the Fourth Proportional to 6,488,607.17, 8,951,301.65 and 4,197,506.69

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Solution

The fourth proportional to 6,488,607.17, 8,951,301.65 and 4,197,506.69 is: 5,790,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488,607.17 : 8,951,301.65 = 4,197,506.69 : x
  2. Step 2: Convert to fraction form
    6,488,607.17/8,951,301.65 = 4,197,506.69/x
  3. Step 3: Cross multiply
    6,488,607.17x = 8,951,301.65 × 4,197,506.69
  4. Step 4: Simplify right side
    6,488,607.17x = 37,573,148,539,095.51
  5. Step 5: Solve for x
    x = 37,573,148,539,095.51/6,488,607.17
  6. Step 6: Final answer
    x = 5,790,633.88

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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.