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Finding the Fourth Proportional to 334,110.30, 501,165.45 and 255,378.30

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Solution

The fourth proportional to 334,110.30, 501,165.45 and 255,378.30 is: 383,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,110.30 : 501,165.45 = 255,378.30 : x
  2. Step 2: Convert to fraction form
    334,110.30/501,165.45 = 255,378.30/x
  3. Step 3: Cross multiply
    334,110.30x = 501,165.45 × 255,378.30
  4. Step 4: Simplify right side
    334,110.30x = 127,986,780,639.74
  5. Step 5: Solve for x
    x = 127,986,780,639.74/334,110.30
  6. Step 6: Final answer
    x = 383,067.45

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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.