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Finding the Fourth Proportional to 356,745.32, 492,330.66 and 197,769.32

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Solution

The fourth proportional to 356,745.32, 492,330.66 and 197,769.32 is: 272,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,745.32 : 492,330.66 = 197,769.32 : x
  2. Step 2: Convert to fraction form
    356,745.32/492,330.66 = 197,769.32/x
  3. Step 3: Cross multiply
    356,745.32x = 492,330.66 × 197,769.32
  4. Step 4: Simplify right side
    356,745.32x = 97,367,899,843.35
  5. Step 5: Solve for x
    x = 97,367,899,843.35/356,745.32
  6. Step 6: Final answer
    x = 272,933.92

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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.