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Finding the Fourth Proportional to 281,718.71, 388,599.09 and 230,110.81

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Solution

The fourth proportional to 281,718.71, 388,599.09 and 230,110.81 is: 317,411.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,718.71 : 388,599.09 = 230,110.81 : x
  2. Step 2: Convert to fraction form
    281,718.71/388,599.09 = 230,110.81/x
  3. Step 3: Cross multiply
    281,718.71x = 388,599.09 × 230,110.81
  4. Step 4: Simplify right side
    281,718.71x = 89,420,851,365.16
  5. Step 5: Solve for x
    x = 89,420,851,365.16/281,718.71
  6. Step 6: Final answer
    x = 317,411.83

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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.