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Finding the Fourth Proportional to 437,422.50, 603,643.08 and 236,218.50

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Solution

The fourth proportional to 437,422.50, 603,643.08 and 236,218.50 is: 325,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,422.50 : 603,643.08 = 236,218.50 : x
  2. Step 2: Convert to fraction form
    437,422.50/603,643.08 = 236,218.50/x
  3. Step 3: Cross multiply
    437,422.50x = 603,643.08 × 236,218.50
  4. Step 4: Simplify right side
    437,422.50x = 142,591,662,892.98
  5. Step 5: Solve for x
    x = 142,591,662,892.98/437,422.50
  6. Step 6: Final answer
    x = 325,981.55

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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.