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Finding the Fourth Proportional to 498,611.52, 687,844.56 and 362,434.32

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Solution

The fourth proportional to 498,611.52, 687,844.56 and 362,434.32 is: 499,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,611.52 : 687,844.56 = 362,434.32 : x
  2. Step 2: Convert to fraction form
    498,611.52/687,844.56 = 362,434.32/x
  3. Step 3: Cross multiply
    498,611.52x = 687,844.56 × 362,434.32
  4. Step 4: Simplify right side
    498,611.52x = 249,298,475,369.30
  5. Step 5: Solve for x
    x = 249,298,475,369.30/498,611.52
  6. Step 6: Final answer
    x = 499,985.39

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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.