Home / 319,037.09-440,302.19-238,324.41

Finding the Fourth Proportional to 319,037.09, 440,302.19 and 238,324.41

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Solution

The fourth proportional to 319,037.09, 440,302.19 and 238,324.41 is: 328,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,037.09 : 440,302.19 = 238,324.41 : x
  2. Step 2: Convert to fraction form
    319,037.09/440,302.19 = 238,324.41/x
  3. Step 3: Cross multiply
    319,037.09x = 440,302.19 × 238,324.41
  4. Step 4: Simplify right side
    319,037.09x = 104,934,758,461.84
  5. Step 5: Solve for x
    x = 104,934,758,461.84/319,037.09
  6. Step 6: Final answer
    x = 328,910.85

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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.