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Finding the Fourth Proportional to 616,256.90, 850,428.66 and 344,371.64

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Solution

The fourth proportional to 616,256.90, 850,428.66 and 344,371.64 is: 475,229.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,256.90 : 850,428.66 = 344,371.64 : x
  2. Step 2: Convert to fraction form
    616,256.90/850,428.66 = 344,371.64/x
  3. Step 3: Cross multiply
    616,256.90x = 850,428.66 × 344,371.64
  4. Step 4: Simplify right side
    616,256.90x = 292,863,512,347.20
  5. Step 5: Solve for x
    x = 292,863,512,347.20/616,256.90
  6. Step 6: Final answer
    x = 475,229.59

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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.