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Finding the Fourth Proportional to 710.18, 1,065.44 and 467.18

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Solution

The fourth proportional to 710.18, 1,065.44 and 467.18 is: 700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.18 : 1,065.44 = 467.18 : x
  2. Step 2: Convert to fraction form
    710.18/1,065.44 = 467.18/x
  3. Step 3: Cross multiply
    710.18x = 1,065.44 × 467.18
  4. Step 4: Simplify right side
    710.18x = 497,748.10
  5. Step 5: Solve for x
    x = 497,748.10/710.18
  6. Step 6: Final answer
    x = 700.88

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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.