Home / 939,568.66-1,296,608.19-509,848.78

Finding the Fourth Proportional to 939,568.66, 1,296,608.19 and 509,848.78

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Solution

The fourth proportional to 939,568.66, 1,296,608.19 and 509,848.78 is: 703,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,568.66 : 1,296,608.19 = 509,848.78 : x
  2. Step 2: Convert to fraction form
    939,568.66/1,296,608.19 = 509,848.78/x
  3. Step 3: Cross multiply
    939,568.66x = 1,296,608.19 × 509,848.78
  4. Step 4: Simplify right side
    939,568.66x = 661,074,103,809.51
  5. Step 5: Solve for x
    x = 661,074,103,809.51/939,568.66
  6. Step 6: Final answer
    x = 703,593.18

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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.