Home / 641,944.85-885,873.04-355,458.79

Finding the Fourth Proportional to 641,944.85, 885,873.04 and 355,458.79

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Solution

The fourth proportional to 641,944.85, 885,873.04 and 355,458.79 is: 490,527.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,944.85 : 885,873.04 = 355,458.79 : x
  2. Step 2: Convert to fraction form
    641,944.85/885,873.04 = 355,458.79/x
  3. Step 3: Cross multiply
    641,944.85x = 885,873.04 × 355,458.79
  4. Step 4: Simplify right side
    641,944.85x = 314,891,355,788.69
  5. Step 5: Solve for x
    x = 314,891,355,788.69/641,944.85
  6. Step 6: Final answer
    x = 490,527.11

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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.