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Finding the Fourth Proportional to 585,621.30, 808,123.84 and 323,960.97

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Solution

The fourth proportional to 585,621.30, 808,123.84 and 323,960.97 is: 447,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,621.30 : 808,123.84 = 323,960.97 : x
  2. Step 2: Convert to fraction form
    585,621.30/808,123.84 = 323,960.97/x
  3. Step 3: Cross multiply
    585,621.30x = 808,123.84 × 323,960.97
  4. Step 4: Simplify right side
    585,621.30x = 261,800,583,086.53
  5. Step 5: Solve for x
    x = 261,800,583,086.53/585,621.30
  6. Step 6: Final answer
    x = 447,047.58

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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.