Home / 639,572.38-882,509.33-367,587.75

Finding the Fourth Proportional to 639,572.38, 882,509.33 and 367,587.75

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Solution

The fourth proportional to 639,572.38, 882,509.33 and 367,587.75 is: 507,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,572.38 : 882,509.33 = 367,587.75 : x
  2. Step 2: Convert to fraction form
    639,572.38/882,509.33 = 367,587.75/x
  3. Step 3: Cross multiply
    639,572.38x = 882,509.33 × 367,587.75
  4. Step 4: Simplify right side
    639,572.38x = 324,399,613,683.23
  5. Step 5: Solve for x
    x = 324,399,613,683.23/639,572.38
  6. Step 6: Final answer
    x = 507,213.29

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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.