Home / 1,199,871.28-1,656,239.36-690,776.56

Finding the Fourth Proportional to 1,199,871.28, 1,656,239.36 and 690,776.56

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Solution

The fourth proportional to 1,199,871.28, 1,656,239.36 and 690,776.56 is: 953,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,871.28 : 1,656,239.36 = 690,776.56 : x
  2. Step 2: Convert to fraction form
    1,199,871.28/1,656,239.36 = 690,776.56/x
  3. Step 3: Cross multiply
    1,199,871.28x = 1,656,239.36 × 690,776.56
  4. Step 4: Simplify right side
    1,199,871.28x = 1,144,091,327,637.40
  5. Step 5: Solve for x
    x = 1,144,091,327,637.40/1,199,871.28
  6. Step 6: Final answer
    x = 953,511.72

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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.