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Finding the Fourth Proportional to 4,287,906.72, 5,917,384.80 and 2,354,248.80

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Solution

The fourth proportional to 4,287,906.72, 5,917,384.80 and 2,354,248.80 is: 3,248,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287,906.72 : 5,917,384.80 = 2,354,248.80 : x
  2. Step 2: Convert to fraction form
    4,287,906.72/5,917,384.80 = 2,354,248.80/x
  3. Step 3: Cross multiply
    4,287,906.72x = 5,917,384.80 × 2,354,248.80
  4. Step 4: Simplify right side
    4,287,906.72x = 13,930,996,064,538.24
  5. Step 5: Solve for x
    x = 13,930,996,064,538.24/4,287,906.72
  6. Step 6: Final answer
    x = 3,248,903.71

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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.