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Finding the Fourth Proportional to 702,013.01, 968,694.54 and 396,071.51

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Solution

The fourth proportional to 702,013.01, 968,694.54 and 396,071.51 is: 546,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,013.01 : 968,694.54 = 396,071.51 : x
  2. Step 2: Convert to fraction form
    702,013.01/968,694.54 = 396,071.51/x
  3. Step 3: Cross multiply
    702,013.01x = 968,694.54 × 396,071.51
  4. Step 4: Simplify right side
    702,013.01x = 383,672,309,186.56
  5. Step 5: Solve for x
    x = 383,672,309,186.56/702,013.01
  6. Step 6: Final answer
    x = 546,531.62

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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.