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Finding the Fourth Proportional to 556,665.20, 834,997.80 and 201,690.80

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Solution

The fourth proportional to 556,665.20, 834,997.80 and 201,690.80 is: 302,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,665.20 : 834,997.80 = 201,690.80 : x
  2. Step 2: Convert to fraction form
    556,665.20/834,997.80 = 201,690.80/x
  3. Step 3: Cross multiply
    556,665.20x = 834,997.80 × 201,690.80
  4. Step 4: Simplify right side
    556,665.20x = 168,411,374,280.24
  5. Step 5: Solve for x
    x = 168,411,374,280.24/556,665.20
  6. Step 6: Final answer
    x = 302,536.20

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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.