Home / 1,191,820.12-1,644,729.72-647,954.68

Finding the Fourth Proportional to 1,191,820.12, 1,644,729.72 and 647,954.68

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Solution

The fourth proportional to 1,191,820.12, 1,644,729.72 and 647,954.68 is: 894,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,820.12 : 1,644,729.72 = 647,954.68 : x
  2. Step 2: Convert to fraction form
    1,191,820.12/1,644,729.72 = 647,954.68/x
  3. Step 3: Cross multiply
    1,191,820.12x = 1,644,729.72 × 647,954.68
  4. Step 4: Simplify right side
    1,191,820.12x = 1,065,710,319,409.09
  5. Step 5: Solve for x
    x = 1,065,710,319,409.09/1,191,820.12
  6. Step 6: Final answer
    x = 894,187.22

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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.