Home / 606,221.36-836,439.18-391,315.40

Finding the Fourth Proportional to 606,221.36, 836,439.18 and 391,315.40

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Solution

The fourth proportional to 606,221.36, 836,439.18 and 391,315.40 is: 539,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,221.36 : 836,439.18 = 391,315.40 : x
  2. Step 2: Convert to fraction form
    606,221.36/836,439.18 = 391,315.40/x
  3. Step 3: Cross multiply
    606,221.36x = 836,439.18 × 391,315.40
  4. Step 4: Simplify right side
    606,221.36x = 327,311,532,297.37
  5. Step 5: Solve for x
    x = 327,311,532,297.37/606,221.36
  6. Step 6: Final answer
    x = 539,920.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.