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Finding the Fourth Proportional to 474,648.39, 712,464.80 and 317,971.71

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Solution

The fourth proportional to 474,648.39, 712,464.80 and 317,971.71 is: 477,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,648.39 : 712,464.80 = 317,971.71 : x
  2. Step 2: Convert to fraction form
    474,648.39/712,464.80 = 317,971.71/x
  3. Step 3: Cross multiply
    474,648.39x = 712,464.80 × 317,971.71
  4. Step 4: Simplify right side
    474,648.39x = 226,543,649,180.95
  5. Step 5: Solve for x
    x = 226,543,649,180.95/474,648.39
  6. Step 6: Final answer
    x = 477,287.30

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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.