Home / 699,908.14-1,051,126.86-643,644.46

Finding the Fourth Proportional to 699,908.14, 1,051,126.86 and 643,644.46

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Solution

The fourth proportional to 699,908.14, 1,051,126.86 and 643,644.46 is: 966,629.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,908.14 : 1,051,126.86 = 643,644.46 : x
  2. Step 2: Convert to fraction form
    699,908.14/1,051,126.86 = 643,644.46/x
  3. Step 3: Cross multiply
    699,908.14x = 1,051,126.86 × 643,644.46
  4. Step 4: Simplify right side
    699,908.14x = 676,551,980,196.20
  5. Step 5: Solve for x
    x = 676,551,980,196.20/699,908.14
  6. Step 6: Final answer
    x = 966,629.68

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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.