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Finding the Fourth Proportional to 403,311.60, 604,481.40 and 234,507.60

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Solution

The fourth proportional to 403,311.60, 604,481.40 and 234,507.60 is: 351,478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,311.60 : 604,481.40 = 234,507.60 : x
  2. Step 2: Convert to fraction form
    403,311.60/604,481.40 = 234,507.60/x
  3. Step 3: Cross multiply
    403,311.60x = 604,481.40 × 234,507.60
  4. Step 4: Simplify right side
    403,311.60x = 141,755,482,358.64
  5. Step 5: Solve for x
    x = 141,755,482,358.64/403,311.60
  6. Step 6: Final answer
    x = 351,478.81

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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.