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Finding the Fourth Proportional to 698,718.33, 964,111.16 and 392,752.26

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Solution

The fourth proportional to 698,718.33, 964,111.16 and 392,752.26 is: 541,930.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,718.33 : 964,111.16 = 392,752.26 : x
  2. Step 2: Convert to fraction form
    698,718.33/964,111.16 = 392,752.26/x
  3. Step 3: Cross multiply
    698,718.33x = 964,111.16 × 392,752.26
  4. Step 4: Simplify right side
    698,718.33x = 378,656,835,017.46
  5. Step 5: Solve for x
    x = 378,656,835,017.46/698,718.33
  6. Step 6: Final answer
    x = 541,930.59

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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.