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Finding the Fourth Proportional to 403,727.60, 604,927.20 and 245,479.52

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Solution

The fourth proportional to 403,727.60, 604,927.20 and 245,479.52 is: 367,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,727.60 : 604,927.20 = 245,479.52 : x
  2. Step 2: Convert to fraction form
    403,727.60/604,927.20 = 245,479.52/x
  3. Step 3: Cross multiply
    403,727.60x = 604,927.20 × 245,479.52
  4. Step 4: Simplify right side
    403,727.60x = 148,497,238,690.94
  5. Step 5: Solve for x
    x = 148,497,238,690.94/403,727.60
  6. Step 6: Final answer
    x = 367,815.42

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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.