Home / 527,933.10-728,538.18-298,486.43

Finding the Fourth Proportional to 527,933.10, 728,538.18 and 298,486.43

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Solution

The fourth proportional to 527,933.10, 728,538.18 and 298,486.43 is: 411,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,933.10 : 728,538.18 = 298,486.43 : x
  2. Step 2: Convert to fraction form
    527,933.10/728,538.18 = 298,486.43/x
  3. Step 3: Cross multiply
    527,933.10x = 728,538.18 × 298,486.43
  4. Step 4: Simplify right side
    527,933.10x = 217,458,758,436.90
  5. Step 5: Solve for x
    x = 217,458,758,436.90/527,933.10
  6. Step 6: Final answer
    x = 411,905.90

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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.