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Finding the Fourth Proportional to 366,919.68, 550,379.52 and 247,345.45

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Solution

The fourth proportional to 366,919.68, 550,379.52 and 247,345.45 is: 371,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,919.68 : 550,379.52 = 247,345.45 : x
  2. Step 2: Convert to fraction form
    366,919.68/550,379.52 = 247,345.45/x
  3. Step 3: Cross multiply
    366,919.68x = 550,379.52 × 247,345.45
  4. Step 4: Simplify right side
    366,919.68x = 136,133,870,045.18
  5. Step 5: Solve for x
    x = 136,133,870,045.18/366,919.68
  6. Step 6: Final answer
    x = 371,018.18

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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.