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Finding the Fourth Proportional to 624,543.55, 861,874.28 and 348,901.27

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Solution

The fourth proportional to 624,543.55, 861,874.28 and 348,901.27 is: 481,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,543.55 : 861,874.28 = 348,901.27 : x
  2. Step 2: Convert to fraction form
    624,543.55/861,874.28 = 348,901.27/x
  3. Step 3: Cross multiply
    624,543.55x = 861,874.28 × 348,901.27
  4. Step 4: Simplify right side
    624,543.55x = 300,709,030,872.34
  5. Step 5: Solve for x
    x = 300,709,030,872.34/624,543.55
  6. Step 6: Final answer
    x = 481,486.09

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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.