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Finding the Fourth Proportional to 496,876.32, 685,778.67 and 292,915.08

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Solution

The fourth proportional to 496,876.32, 685,778.67 and 292,915.08 is: 404,275.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,876.32 : 685,778.67 = 292,915.08 : x
  2. Step 2: Convert to fraction form
    496,876.32/685,778.67 = 292,915.08/x
  3. Step 3: Cross multiply
    496,876.32x = 685,778.67 × 292,915.08
  4. Step 4: Simplify right side
    496,876.32x = 200,874,913,985.34
  5. Step 5: Solve for x
    x = 200,874,913,985.34/496,876.32
  6. Step 6: Final answer
    x = 404,275.48

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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.