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Finding the Fourth Proportional to 795.55, 1,097.90 and 463.85

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Solution

The fourth proportional to 795.55, 1,097.90 and 463.85 is: 640.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.55 : 1,097.90 = 463.85 : x
  2. Step 2: Convert to fraction form
    795.55/1,097.90 = 463.85/x
  3. Step 3: Cross multiply
    795.55x = 1,097.90 × 463.85
  4. Step 4: Simplify right side
    795.55x = 509,264.66
  5. Step 5: Solve for x
    x = 509,264.66/795.55
  6. Step 6: Final answer
    x = 640.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.