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Finding the Fourth Proportional to 439,891.50, 607,050.27 and 238,687.50

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Solution

The fourth proportional to 439,891.50, 607,050.27 and 238,687.50 is: 329,388.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,891.50 : 607,050.27 = 238,687.50 : x
  2. Step 2: Convert to fraction form
    439,891.50/607,050.27 = 238,687.50/x
  3. Step 3: Cross multiply
    439,891.50x = 607,050.27 × 238,687.50
  4. Step 4: Simplify right side
    439,891.50x = 144,895,311,320.63
  5. Step 5: Solve for x
    x = 144,895,311,320.63/439,891.50
  6. Step 6: Final answer
    x = 329,388.75

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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.