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Finding the Fourth Proportional to 325,088.84, 448,712.78 and 189,149.05

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Solution

The fourth proportional to 325,088.84, 448,712.78 and 189,149.05 is: 261,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,088.84 : 448,712.78 = 189,149.05 : x
  2. Step 2: Convert to fraction form
    325,088.84/448,712.78 = 189,149.05/x
  3. Step 3: Cross multiply
    325,088.84x = 448,712.78 × 189,149.05
  4. Step 4: Simplify right side
    325,088.84x = 84,873,592,870.55
  5. Step 5: Solve for x
    x = 84,873,592,870.55/325,088.84
  6. Step 6: Final answer
    x = 261,078.15

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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.