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Finding the Fourth Proportional to 694,534.80, 1,041,859.80 and 221,206.80

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Solution

The fourth proportional to 694,534.80, 1,041,859.80 and 221,206.80 is: 331,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,534.80 : 1,041,859.80 = 221,206.80 : x
  2. Step 2: Convert to fraction form
    694,534.80/1,041,859.80 = 221,206.80/x
  3. Step 3: Cross multiply
    694,534.80x = 1,041,859.80 × 221,206.80
  4. Step 4: Simplify right side
    694,534.80x = 230,466,472,406.64
  5. Step 5: Solve for x
    x = 230,466,472,406.64/694,534.80
  6. Step 6: Final answer
    x = 331,828.55

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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.