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Finding the Fourth Proportional to 941,807.76, 1,413,599.52 and 343,347.36

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Solution

The fourth proportional to 941,807.76, 1,413,599.52 and 343,347.36 is: 515,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,807.76 : 1,413,599.52 = 343,347.36 : x
  2. Step 2: Convert to fraction form
    941,807.76/1,413,599.52 = 343,347.36/x
  3. Step 3: Cross multiply
    941,807.76x = 1,413,599.52 × 343,347.36
  4. Step 4: Simplify right side
    941,807.76x = 485,355,663,289.27
  5. Step 5: Solve for x
    x = 485,355,663,289.27/941,807.76
  6. Step 6: Final answer
    x = 515,344.73

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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.