Home / 439,739.14-606,854.91-258,448.45

Finding the Fourth Proportional to 439,739.14, 606,854.91 and 258,448.45

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Solution

The fourth proportional to 439,739.14, 606,854.91 and 258,448.45 is: 356,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,739.14 : 606,854.91 = 258,448.45 : x
  2. Step 2: Convert to fraction form
    439,739.14/606,854.91 = 258,448.45/x
  3. Step 3: Cross multiply
    439,739.14x = 606,854.91 × 258,448.45
  4. Step 4: Simplify right side
    439,739.14x = 156,840,710,864.39
  5. Step 5: Solve for x
    x = 156,840,710,864.39/439,739.14
  6. Step 6: Final answer
    x = 356,667.62

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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.