Home / 939,290.28-1,296,221.10-509,570.36

Finding the Fourth Proportional to 939,290.28, 1,296,221.10 and 509,570.36

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Solution

The fourth proportional to 939,290.28, 1,296,221.10 and 509,570.36 is: 703,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,290.28 : 1,296,221.10 = 509,570.36 : x
  2. Step 2: Convert to fraction form
    939,290.28/1,296,221.10 = 509,570.36/x
  3. Step 3: Cross multiply
    939,290.28x = 1,296,221.10 × 509,570.36
  4. Step 4: Simplify right side
    939,290.28x = 660,515,849,035.43
  5. Step 5: Solve for x
    x = 660,515,849,035.43/939,290.28
  6. Step 6: Final answer
    x = 703,207.37

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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.