Home / 663,116.68-994,869.11-213,828.51

Finding the Fourth Proportional to 663,116.68, 994,869.11 and 213,828.51

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Solution

The fourth proportional to 663,116.68, 994,869.11 and 213,828.51 is: 320,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,116.68 : 994,869.11 = 213,828.51 : x
  2. Step 2: Convert to fraction form
    663,116.68/994,869.11 = 213,828.51/x
  3. Step 3: Cross multiply
    663,116.68x = 994,869.11 × 213,828.51
  4. Step 4: Simplify right side
    663,116.68x = 212,731,379,436.33
  5. Step 5: Solve for x
    x = 212,731,379,436.33/663,116.68
  6. Step 6: Final answer
    x = 320,805.35

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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.