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Finding the Fourth Proportional to 1,158.33, 1,736.60 and 572.93

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Solution

The fourth proportional to 1,158.33, 1,736.60 and 572.93 is: 858.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.33 : 1,736.60 = 572.93 : x
  2. Step 2: Convert to fraction form
    1,158.33/1,736.60 = 572.93/x
  3. Step 3: Cross multiply
    1,158.33x = 1,736.60 × 572.93
  4. Step 4: Simplify right side
    1,158.33x = 994,943.16
  5. Step 5: Solve for x
    x = 994,943.16/1,158.33
  6. Step 6: Final answer
    x = 858.95

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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.