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Finding the Fourth Proportional to 366,919.40, 550,379.10 and 247,345.18

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Solution

The fourth proportional to 366,919.40, 550,379.10 and 247,345.18 is: 371,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,919.40 : 550,379.10 = 247,345.18 : x
  2. Step 2: Convert to fraction form
    366,919.40/550,379.10 = 247,345.18/x
  3. Step 3: Cross multiply
    366,919.40x = 550,379.10 × 247,345.18
  4. Step 4: Simplify right side
    366,919.40x = 136,133,617,557.74
  5. Step 5: Solve for x
    x = 136,133,617,557.74/366,919.40
  6. Step 6: Final answer
    x = 371,017.77

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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.