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Finding the Fourth Proportional to 624,122.33, 861,280.43 and 348,484.46

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Solution

The fourth proportional to 624,122.33, 861,280.43 and 348,484.46 is: 480,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,122.33 : 861,280.43 = 348,484.46 : x
  2. Step 2: Convert to fraction form
    624,122.33/861,280.43 = 348,484.46/x
  3. Step 3: Cross multiply
    624,122.33x = 861,280.43 × 348,484.46
  4. Step 4: Simplify right side
    624,122.33x = 300,142,839,508.29
  5. Step 5: Solve for x
    x = 300,142,839,508.29/624,122.33
  6. Step 6: Final answer
    x = 480,903.87

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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.