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Finding the Fourth Proportional to 262,210.30, 392,331.30 and 173,636.80

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Solution

The fourth proportional to 262,210.30, 392,331.30 and 173,636.80 is: 259,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,210.30 : 392,331.30 = 173,636.80 : x
  2. Step 2: Convert to fraction form
    262,210.30/392,331.30 = 173,636.80/x
  3. Step 3: Cross multiply
    262,210.30x = 392,331.30 × 173,636.80
  4. Step 4: Simplify right side
    262,210.30x = 68,123,151,471.84
  5. Step 5: Solve for x
    x = 68,123,151,471.84/262,210.30
  6. Step 6: Final answer
    x = 259,803.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.