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Finding the Fourth Proportional to 488,925.60, 674,569.36 and 316,571.04

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Solution

The fourth proportional to 488,925.60, 674,569.36 and 316,571.04 is: 436,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,925.60 : 674,569.36 = 316,571.04 : x
  2. Step 2: Convert to fraction form
    488,925.60/674,569.36 = 316,571.04/x
  3. Step 3: Cross multiply
    488,925.60x = 674,569.36 × 316,571.04
  4. Step 4: Simplify right side
    488,925.60x = 213,549,123,847.33
  5. Step 5: Solve for x
    x = 213,549,123,847.33/488,925.60
  6. Step 6: Final answer
    x = 436,772.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.