Home / 612,972.38-919,449.34-275,774.91

Finding the Fourth Proportional to 612,972.38, 919,449.34 and 275,774.91

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Solution

The fourth proportional to 612,972.38, 919,449.34 and 275,774.91 is: 413,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,972.38 : 919,449.34 = 275,774.91 : x
  2. Step 2: Convert to fraction form
    612,972.38/919,449.34 = 275,774.91/x
  3. Step 3: Cross multiply
    612,972.38x = 919,449.34 × 275,774.91
  4. Step 4: Simplify right side
    612,972.38x = 253,561,058,988.06
  5. Step 5: Solve for x
    x = 253,561,058,988.06/612,972.38
  6. Step 6: Final answer
    x = 413,658.21

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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.