Home / 393,184.13-542,594.30-223,418.25

Finding the Fourth Proportional to 393,184.13, 542,594.30 and 223,418.25

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Solution

The fourth proportional to 393,184.13, 542,594.30 and 223,418.25 is: 308,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,184.13 : 542,594.30 = 223,418.25 : x
  2. Step 2: Convert to fraction form
    393,184.13/542,594.30 = 223,418.25/x
  3. Step 3: Cross multiply
    393,184.13x = 542,594.30 × 223,418.25
  4. Step 4: Simplify right side
    393,184.13x = 121,225,467,848.88
  5. Step 5: Solve for x
    x = 121,225,467,848.88/393,184.13
  6. Step 6: Final answer
    x = 308,317.30

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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.