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Finding the Fourth Proportional to 356,422.12, 534,298.30 and 119,598.72

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Solution

The fourth proportional to 356,422.12, 534,298.30 and 119,598.72 is: 179,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,422.12 : 534,298.30 = 119,598.72 : x
  2. Step 2: Convert to fraction form
    356,422.12/534,298.30 = 119,598.72/x
  3. Step 3: Cross multiply
    356,422.12x = 534,298.30 × 119,598.72
  4. Step 4: Simplify right side
    356,422.12x = 63,901,392,778.18
  5. Step 5: Solve for x
    x = 63,901,392,778.18/356,422.12
  6. Step 6: Final answer
    x = 179,285.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.