Home / 939,808.89-1,296,901.56-510,079.79

Finding the Fourth Proportional to 939,808.89, 1,296,901.56 and 510,079.79

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Solution

The fourth proportional to 939,808.89, 1,296,901.56 and 510,079.79 is: 703,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,808.89 : 1,296,901.56 = 510,079.79 : x
  2. Step 2: Convert to fraction form
    939,808.89/1,296,901.56 = 510,079.79/x
  3. Step 3: Cross multiply
    939,808.89x = 1,296,901.56 × 510,079.79
  4. Step 4: Simplify right side
    939,808.89x = 661,523,268,890.97
  5. Step 5: Solve for x
    x = 661,523,268,890.97/939,808.89
  6. Step 6: Final answer
    x = 703,891.27

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Double scale
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1.5x scale

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.