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Finding the Fourth Proportional to 540,355.19, 745,625.52 and 298,604.90

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Solution

The fourth proportional to 540,355.19, 745,625.52 and 298,604.90 is: 412,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,355.19 : 745,625.52 = 298,604.90 : x
  2. Step 2: Convert to fraction form
    540,355.19/745,625.52 = 298,604.90/x
  3. Step 3: Cross multiply
    540,355.19x = 745,625.52 × 298,604.90
  4. Step 4: Simplify right side
    540,355.19x = 222,647,435,701.11
  5. Step 5: Solve for x
    x = 222,647,435,701.11/540,355.19
  6. Step 6: Final answer
    x = 412,039.05

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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.