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Finding the Fourth Proportional to 644,437.52, 966,666 and 223,726.76

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Solution

The fourth proportional to 644,437.52, 966,666 and 223,726.76 is: 335,593.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,437.52 : 966,666 = 223,726.76 : x
  2. Step 2: Convert to fraction form
    644,437.52/966,666 = 223,726.76/x
  3. Step 3: Cross multiply
    644,437.52x = 966,666 × 223,726.76
  4. Step 4: Simplify right side
    644,437.52x = 216,269,052,182.16
  5. Step 5: Solve for x
    x = 216,269,052,182.16/644,437.52
  6. Step 6: Final answer
    x = 335,593.51

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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.