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Finding the Fourth Proportional to 506,763.62, 699,286.16 and 343,087.16

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Solution

The fourth proportional to 506,763.62, 699,286.16 and 343,087.16 is: 473,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,763.62 : 699,286.16 = 343,087.16 : x
  2. Step 2: Convert to fraction form
    506,763.62/699,286.16 = 343,087.16/x
  3. Step 3: Cross multiply
    506,763.62x = 699,286.16 × 343,087.16
  4. Step 4: Simplify right side
    506,763.62x = 239,916,102,661.71
  5. Step 5: Solve for x
    x = 239,916,102,661.71/506,763.62
  6. Step 6: Final answer
    x = 473,428.03

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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.