Home / 939,719.34-1,296,801.90-509,999.76

Finding the Fourth Proportional to 939,719.34, 1,296,801.90 and 509,999.76

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Solution

The fourth proportional to 939,719.34, 1,296,801.90 and 509,999.76 is: 703,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,719.34 : 1,296,801.90 = 509,999.76 : x
  2. Step 2: Convert to fraction form
    939,719.34/1,296,801.90 = 509,999.76/x
  3. Step 3: Cross multiply
    939,719.34x = 1,296,801.90 × 509,999.76
  4. Step 4: Simplify right side
    939,719.34x = 661,368,657,767.54
  5. Step 5: Solve for x
    x = 661,368,657,767.54/939,719.34
  6. Step 6: Final answer
    x = 703,793.81

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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.