Home / 838,681.70-1,157,350.34-512,540.34

Finding the Fourth Proportional to 838,681.70, 1,157,350.34 and 512,540.34

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Solution

The fourth proportional to 838,681.70, 1,157,350.34 and 512,540.34 is: 707,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,681.70 : 1,157,350.34 = 512,540.34 : x
  2. Step 2: Convert to fraction form
    838,681.70/1,157,350.34 = 512,540.34/x
  3. Step 3: Cross multiply
    838,681.70x = 1,157,350.34 × 512,540.34
  4. Step 4: Simplify right side
    838,681.70x = 593,188,734,200.01
  5. Step 5: Solve for x
    x = 593,188,734,200.01/838,681.70
  6. Step 6: Final answer
    x = 707,287.09

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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.