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Finding the Fourth Proportional to 369,991.12, 510,589.34 and 200,225.25

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Solution

The fourth proportional to 369,991.12, 510,589.34 and 200,225.25 is: 276,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,991.12 : 510,589.34 = 200,225.25 : x
  2. Step 2: Convert to fraction form
    369,991.12/510,589.34 = 200,225.25/x
  3. Step 3: Cross multiply
    369,991.12x = 510,589.34 × 200,225.25
  4. Step 4: Simplify right side
    369,991.12x = 102,232,878,248.84
  5. Step 5: Solve for x
    x = 102,232,878,248.84/369,991.12
  6. Step 6: Final answer
    x = 276,311.71

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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.