Home / 427,137.18-589,425.75-236,139.18

Finding the Fourth Proportional to 427,137.18, 589,425.75 and 236,139.18

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Solution

The fourth proportional to 427,137.18, 589,425.75 and 236,139.18 is: 325,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,137.18 : 589,425.75 = 236,139.18 : x
  2. Step 2: Convert to fraction form
    427,137.18/589,425.75 = 236,139.18/x
  3. Step 3: Cross multiply
    427,137.18x = 589,425.75 × 236,139.18
  4. Step 4: Simplify right side
    427,137.18x = 139,186,513,275.89
  5. Step 5: Solve for x
    x = 139,186,513,275.89/427,137.18
  6. Step 6: Final answer
    x = 325,859.04

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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.