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Finding the Fourth Proportional to 488,315.60, 732,473.40 and 311,168.60

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Solution

The fourth proportional to 488,315.60, 732,473.40 and 311,168.60 is: 466,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,315.60 : 732,473.40 = 311,168.60 : x
  2. Step 2: Convert to fraction form
    488,315.60/732,473.40 = 311,168.60/x
  3. Step 3: Cross multiply
    488,315.60x = 732,473.40 × 311,168.60
  4. Step 4: Simplify right side
    488,315.60x = 227,922,722,415.24
  5. Step 5: Solve for x
    x = 227,922,722,415.24/488,315.60
  6. Step 6: Final answer
    x = 466,752.90

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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.