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Finding the Fourth Proportional to 489,139.76, 732,524.61 and 248,621.06

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Solution

The fourth proportional to 489,139.76, 732,524.61 and 248,621.06 is: 372,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,139.76 : 732,524.61 = 248,621.06 : x
  2. Step 2: Convert to fraction form
    489,139.76/732,524.61 = 248,621.06/x
  3. Step 3: Cross multiply
    489,139.76x = 732,524.61 × 248,621.06
  4. Step 4: Simplify right side
    489,139.76x = 182,121,045,014.29
  5. Step 5: Solve for x
    x = 182,121,045,014.29/489,139.76
  6. Step 6: Final answer
    x = 372,329.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.