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Finding the Fourth Proportional to 602,078.20, 903,117.30 and 247,346.80

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Solution

The fourth proportional to 602,078.20, 903,117.30 and 247,346.80 is: 371,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,078.20 : 903,117.30 = 247,346.80 : x
  2. Step 2: Convert to fraction form
    602,078.20/903,117.30 = 247,346.80/x
  3. Step 3: Cross multiply
    602,078.20x = 903,117.30 × 247,346.80
  4. Step 4: Simplify right side
    602,078.20x = 223,383,174,179.64
  5. Step 5: Solve for x
    x = 223,383,174,179.64/602,078.20
  6. Step 6: Final answer
    x = 371,020.20

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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.