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Finding the Fourth Proportional to 1,444.48, 2,166.49 and 470.58

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Solution

The fourth proportional to 1,444.48, 2,166.49 and 470.58 is: 705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.48 : 2,166.49 = 470.58 : x
  2. Step 2: Convert to fraction form
    1,444.48/2,166.49 = 470.58/x
  3. Step 3: Cross multiply
    1,444.48x = 2,166.49 × 470.58
  4. Step 4: Simplify right side
    1,444.48x = 1,019,506.86
  5. Step 5: Solve for x
    x = 1,019,506.86/1,444.48
  6. Step 6: Final answer
    x = 705.80

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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.