Home / 1,119,666.40-1,681,249.20-647,274.40

Finding the Fourth Proportional to 1,119,666.40, 1,681,249.20 and 647,274.40

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Solution

The fourth proportional to 1,119,666.40, 1,681,249.20 and 647,274.40 is: 971,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,666.40 : 1,681,249.20 = 647,274.40 : x
  2. Step 2: Convert to fraction form
    1,119,666.40/1,681,249.20 = 647,274.40/x
  3. Step 3: Cross multiply
    1,119,666.40x = 1,681,249.20 × 647,274.40
  4. Step 4: Simplify right side
    1,119,666.40x = 1,088,229,567,180.48
  5. Step 5: Solve for x
    x = 1,088,229,567,180.48/1,119,666.40
  6. Step 6: Final answer
    x = 971,923.04

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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.