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Finding the Fourth Proportional to 356,666.60, 534,999.90 and 146,234.60

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Solution

The fourth proportional to 356,666.60, 534,999.90 and 146,234.60 is: 219,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,666.60 : 534,999.90 = 146,234.60 : x
  2. Step 2: Convert to fraction form
    356,666.60/534,999.90 = 146,234.60/x
  3. Step 3: Cross multiply
    356,666.60x = 534,999.90 × 146,234.60
  4. Step 4: Simplify right side
    356,666.60x = 78,235,496,376.54
  5. Step 5: Solve for x
    x = 78,235,496,376.54/356,666.60
  6. Step 6: Final answer
    x = 219,351.90

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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.