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Finding the Fourth Proportional to 555,815.92, 767,040.18 and 341,074.66

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Solution

The fourth proportional to 555,815.92, 767,040.18 and 341,074.66 is: 470,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,815.92 : 767,040.18 = 341,074.66 : x
  2. Step 2: Convert to fraction form
    555,815.92/767,040.18 = 341,074.66/x
  3. Step 3: Cross multiply
    555,815.92x = 767,040.18 × 341,074.66
  4. Step 4: Simplify right side
    555,815.92x = 261,617,968,599.84
  5. Step 5: Solve for x
    x = 261,617,968,599.84/555,815.92
  6. Step 6: Final answer
    x = 470,691.75

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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.