Home / 626,020.31-939,104.95-199,406.31

Finding the Fourth Proportional to 626,020.31, 939,104.95 and 199,406.31

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Solution

The fourth proportional to 626,020.31, 939,104.95 and 199,406.31 is: 299,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,020.31 : 939,104.95 = 199,406.31 : x
  2. Step 2: Convert to fraction form
    626,020.31/939,104.95 = 199,406.31/x
  3. Step 3: Cross multiply
    626,020.31x = 939,104.95 × 199,406.31
  4. Step 4: Simplify right side
    626,020.31x = 187,263,448,086.71
  5. Step 5: Solve for x
    x = 187,263,448,086.71/626,020.31
  6. Step 6: Final answer
    x = 299,133.18

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.