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Finding the Fourth Proportional to 500,763.88, 750,620.94 and 185,019.40

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Solution

The fourth proportional to 500,763.88, 750,620.94 and 185,019.40 is: 277,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,763.88 : 750,620.94 = 185,019.40 : x
  2. Step 2: Convert to fraction form
    500,763.88/750,620.94 = 185,019.40/x
  3. Step 3: Cross multiply
    500,763.88x = 750,620.94 × 185,019.40
  4. Step 4: Simplify right side
    500,763.88x = 138,879,435,946.24
  5. Step 5: Solve for x
    x = 138,879,435,946.24/500,763.88
  6. Step 6: Final answer
    x = 277,335.17

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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.