Home / 1,290,542.58-1,780,937.70-717,577.74

Finding the Fourth Proportional to 1,290,542.58, 1,780,937.70 and 717,577.74

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Solution

The fourth proportional to 1,290,542.58, 1,780,937.70 and 717,577.74 is: 990,251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,542.58 : 1,780,937.70 = 717,577.74 : x
  2. Step 2: Convert to fraction form
    1,290,542.58/1,780,937.70 = 717,577.74/x
  3. Step 3: Cross multiply
    1,290,542.58x = 1,780,937.70 × 717,577.74
  4. Step 4: Simplify right side
    1,290,542.58x = 1,277,961,249,846.80
  5. Step 5: Solve for x
    x = 1,277,961,249,846.80/1,290,542.58
  6. Step 6: Final answer
    x = 990,251.13

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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.