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Finding the Fourth Proportional to 655,324,358.40, 982,986,537.60 and 170,650,166.40

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Solution

The fourth proportional to 655,324,358.40, 982,986,537.60 and 170,650,166.40 is: 255,975,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,324,358.40 : 982,986,537.60 = 170,650,166.40 : x
  2. Step 2: Convert to fraction form
    655,324,358.40/982,986,537.60 = 170,650,166.40/x
  3. Step 3: Cross multiply
    655,324,358.40x = 982,986,537.60 × 170,650,166.40
  4. Step 4: Simplify right side
    655,324,358.40x = 167,746,816,210,399,872
  5. Step 5: Solve for x
    x = 167,746,816,210,399,872/655,324,358.40
  6. Step 6: Final answer
    x = 255,975,249.60

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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.