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Finding the Fourth Proportional to 408,678.86, 613,011.44 and 183,880.17

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Solution

The fourth proportional to 408,678.86, 613,011.44 and 183,880.17 is: 275,817.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,678.86 : 613,011.44 = 183,880.17 : x
  2. Step 2: Convert to fraction form
    408,678.86/613,011.44 = 183,880.17/x
  3. Step 3: Cross multiply
    408,678.86x = 613,011.44 × 183,880.17
  4. Step 4: Simplify right side
    408,678.86x = 112,720,646,879.74
  5. Step 5: Solve for x
    x = 112,720,646,879.74/408,678.86
  6. Step 6: Final answer
    x = 275,817.17

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1.5x scale

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.