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Finding the Fourth Proportional to 999.04, 1,494.18 and 607.96

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Solution

The fourth proportional to 999.04, 1,494.18 and 607.96 is: 909.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    999.04 : 1,494.18 = 607.96 : x
  2. Step 2: Convert to fraction form
    999.04/1,494.18 = 607.96/x
  3. Step 3: Cross multiply
    999.04x = 1,494.18 × 607.96
  4. Step 4: Simplify right side
    999.04x = 908,401.67
  5. Step 5: Solve for x
    x = 908,401.67/999.04
  6. Step 6: Final answer
    x = 909.27

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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.