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Finding the Fourth Proportional to 408,726.19, 612,883.23 and 124,362.20

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Solution

The fourth proportional to 408,726.19, 612,883.23 and 124,362.20 is: 186,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,726.19 : 612,883.23 = 124,362.20 : x
  2. Step 2: Convert to fraction form
    408,726.19/612,883.23 = 124,362.20/x
  3. Step 3: Cross multiply
    408,726.19x = 612,883.23 × 124,362.20
  4. Step 4: Simplify right side
    408,726.19x = 76,219,503,761.49
  5. Step 5: Solve for x
    x = 76,219,503,761.49/408,726.19
  6. Step 6: Final answer
    x = 186,480.60

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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.