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Finding the Fourth Proportional to 1,917,616.90, 2,646,294.66 and 1,046,468.82

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Solution

The fourth proportional to 1,917,616.90, 2,646,294.66 and 1,046,468.82 is: 1,444,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,616.90 : 2,646,294.66 = 1,046,468.82 : x
  2. Step 2: Convert to fraction form
    1,917,616.90/2,646,294.66 = 1,046,468.82/x
  3. Step 3: Cross multiply
    1,917,616.90x = 2,646,294.66 × 1,046,468.82
  4. Step 4: Simplify right side
    1,917,616.90x = 2,769,264,850,222.50
  5. Step 5: Solve for x
    x = 2,769,264,850,222.50/1,917,616.90
  6. Step 6: Final answer
    x = 1,444,117.88

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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.