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Finding the Fourth Proportional to 1,845,955.97, 2,547,404.42 and 1,071,658.65

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Solution

The fourth proportional to 1,845,955.97, 2,547,404.42 and 1,071,658.65 is: 1,478,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845,955.97 : 2,547,404.42 = 1,071,658.65 : x
  2. Step 2: Convert to fraction form
    1,845,955.97/2,547,404.42 = 1,071,658.65/x
  3. Step 3: Cross multiply
    1,845,955.97x = 2,547,404.42 × 1,071,658.65
  4. Step 4: Simplify right side
    1,845,955.97x = 2,729,947,976,382.94
  5. Step 5: Solve for x
    x = 2,729,947,976,382.94/1,845,955.97
  6. Step 6: Final answer
    x = 1,478,880.34

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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.