Home / 439,424.04-606,409.95-258,143.61

Finding the Fourth Proportional to 439,424.04, 606,409.95 and 258,143.61

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Solution

The fourth proportional to 439,424.04, 606,409.95 and 258,143.61 is: 356,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,424.04 : 606,409.95 = 258,143.61 : x
  2. Step 2: Convert to fraction form
    439,424.04/606,409.95 = 258,143.61/x
  3. Step 3: Cross multiply
    439,424.04x = 606,409.95 × 258,143.61
  4. Step 4: Simplify right side
    439,424.04x = 156,540,853,148.90
  5. Step 5: Solve for x
    x = 156,540,853,148.90/439,424.04
  6. Step 6: Final answer
    x = 356,240.99

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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.