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Finding the Fourth Proportional to 292,558.35, 403,728.21 and 158,422.35

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Solution

The fourth proportional to 292,558.35, 403,728.21 and 158,422.35 is: 218,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,558.35 : 403,728.21 = 158,422.35 : x
  2. Step 2: Convert to fraction form
    292,558.35/403,728.21 = 158,422.35/x
  3. Step 3: Cross multiply
    292,558.35x = 403,728.21 × 158,422.35
  4. Step 4: Simplify right side
    292,558.35x = 63,959,571,789.49
  5. Step 5: Solve for x
    x = 63,959,571,789.49/292,558.35
  6. Step 6: Final answer
    x = 218,621.59

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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.