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Finding the Fourth Proportional to 1,050.75, 1,450.08 and 585

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Solution

The fourth proportional to 1,050.75, 1,450.08 and 585 is: 807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.75 : 1,450.08 = 585 : x
  2. Step 2: Convert to fraction form
    1,050.75/1,450.08 = 585/x
  3. Step 3: Cross multiply
    1,050.75x = 1,450.08 × 585
  4. Step 4: Simplify right side
    1,050.75x = 848,296.80
  5. Step 5: Solve for x
    x = 848,296.80/1,050.75
  6. Step 6: Final answer
    x = 807.33

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