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Finding the Fourth Proportional to 449,794.64, 674,802.59 and 316,934.39

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Solution

The fourth proportional to 449,794.64, 674,802.59 and 316,934.39 is: 475,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,794.64 : 674,802.59 = 316,934.39 : x
  2. Step 2: Convert to fraction form
    449,794.64/674,802.59 = 316,934.39/x
  3. Step 3: Cross multiply
    449,794.64x = 674,802.59 × 316,934.39
  4. Step 4: Simplify right side
    449,794.64x = 213,868,142,273.39
  5. Step 5: Solve for x
    x = 213,868,142,273.39/449,794.64
  6. Step 6: Final answer
    x = 475,479.53

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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.