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Finding the Fourth Proportional to 403,722.60, 604,919.70 and 245,474.52

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Solution

The fourth proportional to 403,722.60, 604,919.70 and 245,474.52 is: 367,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,722.60 : 604,919.70 = 245,474.52 : x
  2. Step 2: Convert to fraction form
    403,722.60/604,919.70 = 245,474.52/x
  3. Step 3: Cross multiply
    403,722.60x = 604,919.70 × 245,474.52
  4. Step 4: Simplify right side
    403,722.60x = 148,492,372,996.04
  5. Step 5: Solve for x
    x = 148,492,372,996.04/403,722.60
  6. Step 6: Final answer
    x = 367,807.93

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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.