Home / 393,060.03-542,420.12-223,294.16

Finding the Fourth Proportional to 393,060.03, 542,420.12 and 223,294.16

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Solution

The fourth proportional to 393,060.03, 542,420.12 and 223,294.16 is: 308,144.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,060.03 : 542,420.12 = 223,294.16 : x
  2. Step 2: Convert to fraction form
    393,060.03/542,420.12 = 223,294.16/x
  3. Step 3: Cross multiply
    393,060.03x = 542,420.12 × 223,294.16
  4. Step 4: Simplify right side
    393,060.03x = 121,119,241,233.93
  5. Step 5: Solve for x
    x = 121,119,241,233.93/393,060.03
  6. Step 6: Final answer
    x = 308,144.39

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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.