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Finding the Fourth Proportional to 488,656.59, 732,994.61 and 321,244.71

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Solution

The fourth proportional to 488,656.59, 732,994.61 and 321,244.71 is: 481,873.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,656.59 : 732,994.61 = 321,244.71 : x
  2. Step 2: Convert to fraction form
    488,656.59/732,994.61 = 321,244.71/x
  3. Step 3: Cross multiply
    488,656.59x = 732,994.61 × 321,244.71
  4. Step 4: Simplify right side
    488,656.59x = 235,470,639,314.79
  5. Step 5: Solve for x
    x = 235,470,639,314.79/488,656.59
  6. Step 6: Final answer
    x = 481,873.45

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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.