Home / 1,605,205.40-2,408,178.68-540,221.45

Finding the Fourth Proportional to 1,605,205.40, 2,408,178.68 and 540,221.45

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Solution

The fourth proportional to 1,605,205.40, 2,408,178.68 and 540,221.45 is: 810,456.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,205.40 : 2,408,178.68 = 540,221.45 : x
  2. Step 2: Convert to fraction form
    1,605,205.40/2,408,178.68 = 540,221.45/x
  3. Step 3: Cross multiply
    1,605,205.40x = 2,408,178.68 × 540,221.45
  4. Step 4: Simplify right side
    1,605,205.40x = 1,300,949,785,739.69
  5. Step 5: Solve for x
    x = 1,300,949,785,739.69/1,605,205.40
  6. Step 6: Final answer
    x = 810,456.89

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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.