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Finding the Fourth Proportional to 323,832.20, 484,970.70 and 261,624.20

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Solution

The fourth proportional to 323,832.20, 484,970.70 and 261,624.20 is: 391,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,832.20 : 484,970.70 = 261,624.20 : x
  2. Step 2: Convert to fraction form
    323,832.20/484,970.70 = 261,624.20/x
  3. Step 3: Cross multiply
    323,832.20x = 484,970.70 × 261,624.20
  4. Step 4: Simplify right side
    323,832.20x = 126,880,071,410.94
  5. Step 5: Solve for x
    x = 126,880,071,410.94/323,832.20
  6. Step 6: Final answer
    x = 391,808.08

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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.