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Finding the Fourth Proportional to 614,161.80, 921,372.30 and 193,480.20

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Solution

The fourth proportional to 614,161.80, 921,372.30 and 193,480.20 is: 290,261.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,161.80 : 921,372.30 = 193,480.20 : x
  2. Step 2: Convert to fraction form
    614,161.80/921,372.30 = 193,480.20/x
  3. Step 3: Cross multiply
    614,161.80x = 921,372.30 × 193,480.20
  4. Step 4: Simplify right side
    614,161.80x = 178,267,296,878.46
  5. Step 5: Solve for x
    x = 178,267,296,878.46/614,161.80
  6. Step 6: Final answer
    x = 290,261.13

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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.