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Finding the Fourth Proportional to 423,030.88, 634,653.24 and 195,216.76

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Solution

The fourth proportional to 423,030.88, 634,653.24 and 195,216.76 is: 292,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,030.88 : 634,653.24 = 195,216.76 : x
  2. Step 2: Convert to fraction form
    423,030.88/634,653.24 = 195,216.76/x
  3. Step 3: Cross multiply
    423,030.88x = 634,653.24 × 195,216.76
  4. Step 4: Simplify right side
    423,030.88x = 123,894,949,236.30
  5. Step 5: Solve for x
    x = 123,894,949,236.30/423,030.88
  6. Step 6: Final answer
    x = 292,874.48

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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.