Home / 1,191,812.40-1,644,733.60-647,984.80

Finding the Fourth Proportional to 1,191,812.40, 1,644,733.60 and 647,984.80

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Solution

The fourth proportional to 1,191,812.40, 1,644,733.60 and 647,984.80 is: 894,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,812.40 : 1,644,733.60 = 647,984.80 : x
  2. Step 2: Convert to fraction form
    1,191,812.40/1,644,733.60 = 647,984.80/x
  3. Step 3: Cross multiply
    1,191,812.40x = 1,644,733.60 × 647,984.80
  4. Step 4: Simplify right side
    1,191,812.40x = 1,065,762,372,849.28
  5. Step 5: Solve for x
    x = 1,065,762,372,849.28/1,191,812.40
  6. Step 6: Final answer
    x = 894,236.69

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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.