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Finding the Fourth Proportional to 497,776.56, 686,769.12 and 293,758.62

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Solution

The fourth proportional to 497,776.56, 686,769.12 and 293,758.62 is: 405,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,776.56 : 686,769.12 = 293,758.62 : x
  2. Step 2: Convert to fraction form
    497,776.56/686,769.12 = 293,758.62/x
  3. Step 3: Cross multiply
    497,776.56x = 686,769.12 × 293,758.62
  4. Step 4: Simplify right side
    497,776.56x = 201,744,348,949.81
  5. Step 5: Solve for x
    x = 201,744,348,949.81/497,776.56
  6. Step 6: Final answer
    x = 405,290.98

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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.