Home / 1,191,809.30-1,644,729.37-647,981.64

Finding the Fourth Proportional to 1,191,809.30, 1,644,729.37 and 647,981.64

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Solution

The fourth proportional to 1,191,809.30, 1,644,729.37 and 647,981.64 is: 894,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,809.30 : 1,644,729.37 = 647,981.64 : x
  2. Step 2: Convert to fraction form
    1,191,809.30/1,644,729.37 = 647,981.64/x
  3. Step 3: Cross multiply
    1,191,809.30x = 1,644,729.37 × 647,981.64
  4. Step 4: Simplify right side
    1,191,809.30x = 1,065,754,432,908.81
  5. Step 5: Solve for x
    x = 1,065,754,432,908.81/1,191,809.30
  6. Step 6: Final answer
    x = 894,232.36

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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.