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Finding the Fourth Proportional to 281,717.71, 388,597.71 and 230,109.81

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Solution

The fourth proportional to 281,717.71, 388,597.71 and 230,109.81 is: 317,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,717.71 : 388,597.71 = 230,109.81 : x
  2. Step 2: Convert to fraction form
    281,717.71/388,597.71 = 230,109.81/x
  3. Step 3: Cross multiply
    281,717.71x = 388,597.71 × 230,109.81
  4. Step 4: Simplify right side
    281,717.71x = 89,420,145,214.54
  5. Step 5: Solve for x
    x = 89,420,145,214.54/281,717.71
  6. Step 6: Final answer
    x = 317,410.45

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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.