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Finding the Fourth Proportional to 362.60, 544.08 and 260

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Solution

The fourth proportional to 362.60, 544.08 and 260 is: 390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.60 : 544.08 = 260 : x
  2. Step 2: Convert to fraction form
    362.60/544.08 = 260/x
  3. Step 3: Cross multiply
    362.60x = 544.08 × 260
  4. Step 4: Simplify right side
    362.60x = 141,460.80
  5. Step 5: Solve for x
    x = 141,460.80/362.60
  6. Step 6: Final answer
    x = 390.13

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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.