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Finding the Fourth Proportional to 292,728.76, 403,966.10 and 158,592.76

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Solution

The fourth proportional to 292,728.76, 403,966.10 and 158,592.76 is: 218,858.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,728.76 : 403,966.10 = 158,592.76 : x
  2. Step 2: Convert to fraction form
    292,728.76/403,966.10 = 158,592.76/x
  3. Step 3: Cross multiply
    292,728.76x = 403,966.10 × 158,592.76
  4. Step 4: Simplify right side
    292,728.76x = 64,066,098,745.44
  5. Step 5: Solve for x
    x = 64,066,098,745.44/292,728.76
  6. Step 6: Final answer
    x = 218,858.23

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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.