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Finding the Fourth Proportional to 877.43, 1,317.53 and 467.03

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Solution

The fourth proportional to 877.43, 1,317.53 and 467.03 is: 701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    877.43 : 1,317.53 = 467.03 : x
  2. Step 2: Convert to fraction form
    877.43/1,317.53 = 467.03/x
  3. Step 3: Cross multiply
    877.43x = 1,317.53 × 467.03
  4. Step 4: Simplify right side
    877.43x = 615,330.50
  5. Step 5: Solve for x
    x = 615,330.50/877.43
  6. Step 6: Final answer
    x = 701.29

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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.