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Finding the Fourth Proportional to 1,776.48, 2,663.76 and 750.24

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Solution

The fourth proportional to 1,776.48, 2,663.76 and 750.24 is: 1,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.48 : 2,663.76 = 750.24 : x
  2. Step 2: Convert to fraction form
    1,776.48/2,663.76 = 750.24/x
  3. Step 3: Cross multiply
    1,776.48x = 2,663.76 × 750.24
  4. Step 4: Simplify right side
    1,776.48x = 1,998,459.30
  5. Step 5: Solve for x
    x = 1,998,459.30/1,776.48
  6. Step 6: Final answer
    x = 1,124.95

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1.5x scale

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.