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Finding the Fourth Proportional to 1,059.76, 1,588.71 and 410.14

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Solution

The fourth proportional to 1,059.76, 1,588.71 and 410.14 is: 614.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.76 : 1,588.71 = 410.14 : x
  2. Step 2: Convert to fraction form
    1,059.76/1,588.71 = 410.14/x
  3. Step 3: Cross multiply
    1,059.76x = 1,588.71 × 410.14
  4. Step 4: Simplify right side
    1,059.76x = 651,593.52
  5. Step 5: Solve for x
    x = 651,593.52/1,059.76
  6. Step 6: Final answer
    x = 614.85

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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.