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Finding the Fourth Proportional to 1,068.99, 1,604.10 and 703.95

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Solution

The fourth proportional to 1,068.99, 1,604.10 and 703.95 is: 1,056.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.99 : 1,604.10 = 703.95 : x
  2. Step 2: Convert to fraction form
    1,068.99/1,604.10 = 703.95/x
  3. Step 3: Cross multiply
    1,068.99x = 1,604.10 × 703.95
  4. Step 4: Simplify right side
    1,068.99x = 1,129,206.20
  5. Step 5: Solve for x
    x = 1,129,206.20/1,068.99
  6. Step 6: Final answer
    x = 1,056.33

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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.