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Finding the Fourth Proportional to 373,442.40, 558,851.40 and 255,344.40

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Solution

The fourth proportional to 373,442.40, 558,851.40 and 255,344.40 is: 382,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,442.40 : 558,851.40 = 255,344.40 : x
  2. Step 2: Convert to fraction form
    373,442.40/558,851.40 = 255,344.40/x
  3. Step 3: Cross multiply
    373,442.40x = 558,851.40 × 255,344.40
  4. Step 4: Simplify right side
    373,442.40x = 142,699,575,422.16
  5. Step 5: Solve for x
    x = 142,699,575,422.16/373,442.40
  6. Step 6: Final answer
    x = 382,119.37

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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.