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Finding the Fourth Proportional to 486,362.13, 729,988.16 and 246,641.49

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Solution

The fourth proportional to 486,362.13, 729,988.16 and 246,641.49 is: 370,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,362.13 : 729,988.16 = 246,641.49 : x
  2. Step 2: Convert to fraction form
    486,362.13/729,988.16 = 246,641.49/x
  3. Step 3: Cross multiply
    486,362.13x = 729,988.16 × 246,641.49
  4. Step 4: Simplify right side
    486,362.13x = 180,045,362,581.61
  5. Step 5: Solve for x
    x = 180,045,362,581.61/486,362.13
  6. Step 6: Final answer
    x = 370,187.87

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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.