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Finding the Fourth Proportional to 416,362.80, 624,359.52 and 191,668.80

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Solution

The fourth proportional to 416,362.80, 624,359.52 and 191,668.80 is: 287,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,362.80 : 624,359.52 = 191,668.80 : x
  2. Step 2: Convert to fraction form
    416,362.80/624,359.52 = 191,668.80/x
  3. Step 3: Cross multiply
    416,362.80x = 624,359.52 × 191,668.80
  4. Step 4: Simplify right side
    416,362.80x = 119,670,239,966.98
  5. Step 5: Solve for x
    x = 119,670,239,966.98/416,362.80
  6. Step 6: Final answer
    x = 287,418.18

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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.