Home / 502,115.24-692,575.13-320,746.64

Finding the Fourth Proportional to 502,115.24, 692,575.13 and 320,746.64

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Solution

The fourth proportional to 502,115.24, 692,575.13 and 320,746.64 is: 442,410.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,115.24 : 692,575.13 = 320,746.64 : x
  2. Step 2: Convert to fraction form
    502,115.24/692,575.13 = 320,746.64/x
  3. Step 3: Cross multiply
    502,115.24x = 692,575.13 × 320,746.64
  4. Step 4: Simplify right side
    502,115.24x = 222,141,140,828.45
  5. Step 5: Solve for x
    x = 222,141,140,828.45/502,115.24
  6. Step 6: Final answer
    x = 442,410.68

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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.