Home / 1,188,217.80-1,782,326.70-389,306.70

Finding the Fourth Proportional to 1,188,217.80, 1,782,326.70 and 389,306.70

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Solution

The fourth proportional to 1,188,217.80, 1,782,326.70 and 389,306.70 is: 583,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,217.80 : 1,782,326.70 = 389,306.70 : x
  2. Step 2: Convert to fraction form
    1,188,217.80/1,782,326.70 = 389,306.70/x
  3. Step 3: Cross multiply
    1,188,217.80x = 1,782,326.70 × 389,306.70
  4. Step 4: Simplify right side
    1,188,217.80x = 693,871,725,898.89
  5. Step 5: Solve for x
    x = 693,871,725,898.89/1,188,217.80
  6. Step 6: Final answer
    x = 583,960.05

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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.