Home / 418,381.90-577,367.10-227,395.30

Finding the Fourth Proportional to 418,381.90, 577,367.10 and 227,395.30

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Solution

The fourth proportional to 418,381.90, 577,367.10 and 227,395.30 is: 313,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,381.90 : 577,367.10 = 227,395.30 : x
  2. Step 2: Convert to fraction form
    418,381.90/577,367.10 = 227,395.30/x
  3. Step 3: Cross multiply
    418,381.90x = 577,367.10 × 227,395.30
  4. Step 4: Simplify right side
    418,381.90x = 131,290,564,914.63
  5. Step 5: Solve for x
    x = 131,290,564,914.63/418,381.90
  6. Step 6: Final answer
    x = 313,805.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.