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Finding the Fourth Proportional to 633,321.60, 873,966.74 and 361,384.58

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Solution

The fourth proportional to 633,321.60, 873,966.74 and 361,384.58 is: 498,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,321.60 : 873,966.74 = 361,384.58 : x
  2. Step 2: Convert to fraction form
    633,321.60/873,966.74 = 361,384.58/x
  3. Step 3: Cross multiply
    633,321.60x = 873,966.74 × 361,384.58
  4. Step 4: Simplify right side
    633,321.60x = 315,838,103,268.87
  5. Step 5: Solve for x
    x = 315,838,103,268.87/633,321.60
  6. Step 6: Final answer
    x = 498,700.98

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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.