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Finding the Fourth Proportional to 478,873.62, 718,310.41 and 454,928.02

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Solution

The fourth proportional to 478,873.62, 718,310.41 and 454,928.02 is: 682,392.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,873.62 : 718,310.41 = 454,928.02 : x
  2. Step 2: Convert to fraction form
    478,873.62/718,310.41 = 454,928.02/x
  3. Step 3: Cross multiply
    478,873.62x = 718,310.41 × 454,928.02
  4. Step 4: Simplify right side
    478,873.62x = 326,779,532,566.69
  5. Step 5: Solve for x
    x = 326,779,532,566.69/478,873.62
  6. Step 6: Final answer
    x = 682,392.01

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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.