Home / 945,987.40-1,418,543.70-413,234.20

Finding the Fourth Proportional to 945,987.40, 1,418,543.70 and 413,234.20

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Solution

The fourth proportional to 945,987.40, 1,418,543.70 and 413,234.20 is: 619,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,987.40 : 1,418,543.70 = 413,234.20 : x
  2. Step 2: Convert to fraction form
    945,987.40/1,418,543.70 = 413,234.20/x
  3. Step 3: Cross multiply
    945,987.40x = 1,418,543.70 × 413,234.20
  4. Step 4: Simplify right side
    945,987.40x = 586,190,771,034.54
  5. Step 5: Solve for x
    x = 586,190,771,034.54/945,987.40
  6. Step 6: Final answer
    x = 619,660.23

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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.