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Finding the Fourth Proportional to 710,586.29, 980,664.98 and 404,675.61

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Solution

The fourth proportional to 710,586.29, 980,664.98 and 404,675.61 is: 558,484.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,586.29 : 980,664.98 = 404,675.61 : x
  2. Step 2: Convert to fraction form
    710,586.29/980,664.98 = 404,675.61/x
  3. Step 3: Cross multiply
    710,586.29x = 980,664.98 × 404,675.61
  4. Step 4: Simplify right side
    710,586.29x = 396,851,198,987.14
  5. Step 5: Solve for x
    x = 396,851,198,987.14/710,586.29
  6. Step 6: Final answer
    x = 558,484.18

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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.