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Finding the Fourth Proportional to 632,484.45, 948,726.68 and 419,908.05

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Solution

The fourth proportional to 632,484.45, 948,726.68 and 419,908.05 is: 629,862.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,484.45 : 948,726.68 = 419,908.05 : x
  2. Step 2: Convert to fraction form
    632,484.45/948,726.68 = 419,908.05/x
  3. Step 3: Cross multiply
    632,484.45x = 948,726.68 × 419,908.05
  4. Step 4: Simplify right side
    632,484.45x = 398,377,968,082.23
  5. Step 5: Solve for x
    x = 398,377,968,082.23/632,484.45
  6. Step 6: Final answer
    x = 629,862.08

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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.