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Finding the Fourth Proportional to 1,176.86, 1,624 and 652.89

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Solution

The fourth proportional to 1,176.86, 1,624 and 652.89 is: 900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.86 : 1,624 = 652.89 : x
  2. Step 2: Convert to fraction form
    1,176.86/1,624 = 652.89/x
  3. Step 3: Cross multiply
    1,176.86x = 1,624 × 652.89
  4. Step 4: Simplify right side
    1,176.86x = 1,060,293.36
  5. Step 5: Solve for x
    x = 1,060,293.36/1,176.86
  6. Step 6: Final answer
    x = 900.95

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Why These Related Problems?

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