Home / 1,191,051.75-1,643,661.79-647,187.55

Finding the Fourth Proportional to 1,191,051.75, 1,643,661.79 and 647,187.55

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Solution

The fourth proportional to 1,191,051.75, 1,643,661.79 and 647,187.55 is: 893,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,051.75 : 1,643,661.79 = 647,187.55 : x
  2. Step 2: Convert to fraction form
    1,191,051.75/1,643,661.79 = 647,187.55/x
  3. Step 3: Cross multiply
    1,191,051.75x = 1,643,661.79 × 647,187.55
  4. Step 4: Simplify right side
    1,191,051.75x = 1,063,757,446,898.71
  5. Step 5: Solve for x
    x = 1,063,757,446,898.71/1,191,051.75
  6. Step 6: Final answer
    x = 893,124.46

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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.