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Finding the Fourth Proportional to 356,003.60, 534,619.80 and 190,115.60

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Solution

The fourth proportional to 356,003.60, 534,619.80 and 190,115.60 is: 285,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,003.60 : 534,619.80 = 190,115.60 : x
  2. Step 2: Convert to fraction form
    356,003.60/534,619.80 = 190,115.60/x
  3. Step 3: Cross multiply
    356,003.60x = 534,619.80 × 190,115.60
  4. Step 4: Simplify right side
    356,003.60x = 101,639,564,048.88
  5. Step 5: Solve for x
    x = 101,639,564,048.88/356,003.60
  6. Step 6: Final answer
    x = 285,501.51

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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.