Home / 931,713.34-1,396,144.47-626,978.97

Finding the Fourth Proportional to 931,713.34, 1,396,144.47 and 626,978.97

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Solution

The fourth proportional to 931,713.34, 1,396,144.47 and 626,978.97 is: 939,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,713.34 : 1,396,144.47 = 626,978.97 : x
  2. Step 2: Convert to fraction form
    931,713.34/1,396,144.47 = 626,978.97/x
  3. Step 3: Cross multiply
    931,713.34x = 1,396,144.47 × 626,978.97
  4. Step 4: Simplify right side
    931,713.34x = 875,353,218,636.90
  5. Step 5: Solve for x
    x = 875,353,218,636.90/931,713.34
  6. Step 6: Final answer
    x = 939,509.16

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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.