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Finding the Fourth Proportional to 409,434.53, 565,061.69 and 246,143.90

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Solution

The fourth proportional to 409,434.53, 565,061.69 and 246,143.90 is: 339,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,434.53 : 565,061.69 = 246,143.90 : x
  2. Step 2: Convert to fraction form
    409,434.53/565,061.69 = 246,143.90/x
  3. Step 3: Cross multiply
    409,434.53x = 565,061.69 × 246,143.90
  4. Step 4: Simplify right side
    409,434.53x = 139,086,488,117.19
  5. Step 5: Solve for x
    x = 139,086,488,117.19/409,434.53
  6. Step 6: Final answer
    x = 339,703.85

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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.