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Finding the Fourth Proportional to 1,133.90, 1,700.95 and 585.83

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Solution

The fourth proportional to 1,133.90, 1,700.95 and 585.83 is: 878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.90 : 1,700.95 = 585.83 : x
  2. Step 2: Convert to fraction form
    1,133.90/1,700.95 = 585.83/x
  3. Step 3: Cross multiply
    1,133.90x = 1,700.95 × 585.83
  4. Step 4: Simplify right side
    1,133.90x = 996,471.42
  5. Step 5: Solve for x
    x = 996,471.42/1,133.90
  6. Step 6: Final answer
    x = 878.80

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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.