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Finding the Fourth Proportional to 416,461.80, 624,508.02 and 191,767.80

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Solution

The fourth proportional to 416,461.80, 624,508.02 and 191,767.80 is: 287,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,461.80 : 624,508.02 = 191,767.80 : x
  2. Step 2: Convert to fraction form
    416,461.80/624,508.02 = 191,767.80/x
  3. Step 3: Cross multiply
    416,461.80x = 624,508.02 × 191,767.80
  4. Step 4: Simplify right side
    416,461.80x = 119,760,529,077.76
  5. Step 5: Solve for x
    x = 119,760,529,077.76/416,461.80
  6. Step 6: Final answer
    x = 287,566.66

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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.