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Finding the Fourth Proportional to 386,316.80, 579,475.20 and 244,599.20

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Solution

The fourth proportional to 386,316.80, 579,475.20 and 244,599.20 is: 366,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,316.80 : 579,475.20 = 244,599.20 : x
  2. Step 2: Convert to fraction form
    386,316.80/579,475.20 = 244,599.20/x
  3. Step 3: Cross multiply
    386,316.80x = 579,475.20 × 244,599.20
  4. Step 4: Simplify right side
    386,316.80x = 141,739,170,339.84
  5. Step 5: Solve for x
    x = 141,739,170,339.84/386,316.80
  6. Step 6: Final answer
    x = 366,898.80

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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.