Home / 626,090.85-939,120.62-342,057.33

Finding the Fourth Proportional to 626,090.85, 939,120.62 and 342,057.33

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Solution

The fourth proportional to 626,090.85, 939,120.62 and 342,057.33 is: 513,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,090.85 : 939,120.62 = 342,057.33 : x
  2. Step 2: Convert to fraction form
    626,090.85/939,120.62 = 342,057.33/x
  3. Step 3: Cross multiply
    626,090.85x = 939,120.62 × 342,057.33
  4. Step 4: Simplify right side
    626,090.85x = 321,233,090,114.86
  5. Step 5: Solve for x
    x = 321,233,090,114.86/626,090.85
  6. Step 6: Final answer
    x = 513,077.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.