Home / 939,571.70-1,296,602.37-509,840.90

Finding the Fourth Proportional to 939,571.70, 1,296,602.37 and 509,840.90

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Solution

The fourth proportional to 939,571.70, 1,296,602.37 and 509,840.90 is: 703,576.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,571.70 : 1,296,602.37 = 509,840.90 : x
  2. Step 2: Convert to fraction form
    939,571.70/1,296,602.37 = 509,840.90/x
  3. Step 3: Cross multiply
    939,571.70x = 1,296,602.37 × 509,840.90
  4. Step 4: Simplify right side
    939,571.70x = 661,060,919,262.93
  5. Step 5: Solve for x
    x = 661,060,919,262.93/939,571.70
  6. Step 6: Final answer
    x = 703,576.87

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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.