Home / 639,250.20-958,875.30-401,304.60

Finding the Fourth Proportional to 639,250.20, 958,875.30 and 401,304.60

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Solution

The fourth proportional to 639,250.20, 958,875.30 and 401,304.60 is: 601,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,250.20 : 958,875.30 = 401,304.60 : x
  2. Step 2: Convert to fraction form
    639,250.20/958,875.30 = 401,304.60/x
  3. Step 3: Cross multiply
    639,250.20x = 958,875.30 × 401,304.60
  4. Step 4: Simplify right side
    639,250.20x = 384,801,068,716.38
  5. Step 5: Solve for x
    x = 384,801,068,716.38/639,250.20
  6. Step 6: Final answer
    x = 601,956.90

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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.