Home / 945,985.40-1,418,540.70-413,232.20

Finding the Fourth Proportional to 945,985.40, 1,418,540.70 and 413,232.20

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Solution

The fourth proportional to 945,985.40, 1,418,540.70 and 413,232.20 is: 619,657.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,985.40 : 1,418,540.70 = 413,232.20 : x
  2. Step 2: Convert to fraction form
    945,985.40/1,418,540.70 = 413,232.20/x
  3. Step 3: Cross multiply
    945,985.40x = 1,418,540.70 × 413,232.20
  4. Step 4: Simplify right side
    945,985.40x = 586,186,694,250.54
  5. Step 5: Solve for x
    x = 586,186,694,250.54/945,985.40
  6. Step 6: Final answer
    x = 619,657.23

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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.