Home / 663,116.76-994,869.23-213,828.59

Finding the Fourth Proportional to 663,116.76, 994,869.23 and 213,828.59

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Solution

The fourth proportional to 663,116.76, 994,869.23 and 213,828.59 is: 320,805.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,116.76 : 994,869.23 = 213,828.59 : x
  2. Step 2: Convert to fraction form
    663,116.76/994,869.23 = 213,828.59/x
  3. Step 3: Cross multiply
    663,116.76x = 994,869.23 × 213,828.59
  4. Step 4: Simplify right side
    663,116.76x = 212,731,486,103.32
  5. Step 5: Solve for x
    x = 212,731,486,103.32/663,116.76
  6. Step 6: Final answer
    x = 320,805.47

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1.5x scale

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.