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Finding the Fourth Proportional to 547,929, 756,088.97 and 343,914.71

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Solution

The fourth proportional to 547,929, 756,088.97 and 343,914.71 is: 474,568.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,929 : 756,088.97 = 343,914.71 : x
  2. Step 2: Convert to fraction form
    547,929/756,088.97 = 343,914.71/x
  3. Step 3: Cross multiply
    547,929x = 756,088.97 × 343,914.71
  4. Step 4: Simplify right side
    547,929x = 260,030,113,351.73
  5. Step 5: Solve for x
    x = 260,030,113,351.73/547,929
  6. Step 6: Final answer
    x = 474,568.99

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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.