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Finding the Fourth Proportional to 330,575.43, 456,381.44 and 252,904.95

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Solution

The fourth proportional to 330,575.43, 456,381.44 and 252,904.95 is: 349,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,575.43 : 456,381.44 = 252,904.95 : x
  2. Step 2: Convert to fraction form
    330,575.43/456,381.44 = 252,904.95/x
  3. Step 3: Cross multiply
    330,575.43x = 456,381.44 × 252,904.95
  4. Step 4: Simplify right side
    330,575.43x = 115,421,123,999.60
  5. Step 5: Solve for x
    x = 115,421,123,999.60/330,575.43
  6. Step 6: Final answer
    x = 349,152.16

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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.