Home / 641,148.10-961,808.55-220,552.90

Finding the Fourth Proportional to 641,148.10, 961,808.55 and 220,552.90

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Solution

The fourth proportional to 641,148.10, 961,808.55 and 220,552.90 is: 330,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,148.10 : 961,808.55 = 220,552.90 : x
  2. Step 2: Convert to fraction form
    641,148.10/961,808.55 = 220,552.90/x
  3. Step 3: Cross multiply
    641,148.10x = 961,808.55 × 220,552.90
  4. Step 4: Simplify right side
    641,148.10x = 212,129,664,947.30
  5. Step 5: Solve for x
    x = 212,129,664,947.30/641,148.10
  6. Step 6: Final answer
    x = 330,859.07

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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.