Home / 439,876.38-607,032.64-238,672.38

Finding the Fourth Proportional to 439,876.38, 607,032.64 and 238,672.38

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Solution

The fourth proportional to 439,876.38, 607,032.64 and 238,672.38 is: 329,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,876.38 : 607,032.64 = 238,672.38 : x
  2. Step 2: Convert to fraction form
    439,876.38/607,032.64 = 238,672.38/x
  3. Step 3: Cross multiply
    439,876.38x = 607,032.64 × 238,672.38
  4. Step 4: Simplify right side
    439,876.38x = 144,881,924,926.48
  5. Step 5: Solve for x
    x = 144,881,924,926.48/439,876.38
  6. Step 6: Final answer
    x = 329,369.64

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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.