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Finding the Fourth Proportional to 416,396.20, 624,177.66 and 191,918.92

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Solution

The fourth proportional to 416,396.20, 624,177.66 and 191,918.92 is: 287,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,396.20 : 624,177.66 = 191,918.92 : x
  2. Step 2: Convert to fraction form
    416,396.20/624,177.66 = 191,918.92/x
  3. Step 3: Cross multiply
    416,396.20x = 624,177.66 × 191,918.92
  4. Step 4: Simplify right side
    416,396.20x = 119,791,502,395.33
  5. Step 5: Solve for x
    x = 119,791,502,395.33/416,396.20
  6. Step 6: Final answer
    x = 287,686.35

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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.