Home / 439,640.10-606,707.19-238,436.10

Finding the Fourth Proportional to 439,640.10, 606,707.19 and 238,436.10

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Solution

The fourth proportional to 439,640.10, 606,707.19 and 238,436.10 is: 329,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,640.10 : 606,707.19 = 238,436.10 : x
  2. Step 2: Convert to fraction form
    439,640.10/606,707.19 = 238,436.10/x
  3. Step 3: Cross multiply
    439,640.10x = 606,707.19 × 238,436.10
  4. Step 4: Simplify right side
    439,640.10x = 144,660,896,225.56
  5. Step 5: Solve for x
    x = 144,660,896,225.56/439,640.10
  6. Step 6: Final answer
    x = 329,043.91

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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.