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Finding the Fourth Proportional to 590,464.20, 885,696.30 and 163,999.20

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Solution

The fourth proportional to 590,464.20, 885,696.30 and 163,999.20 is: 245,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,464.20 : 885,696.30 = 163,999.20 : x
  2. Step 2: Convert to fraction form
    590,464.20/885,696.30 = 163,999.20/x
  3. Step 3: Cross multiply
    590,464.20x = 885,696.30 × 163,999.20
  4. Step 4: Simplify right side
    590,464.20x = 145,253,484,642.96
  5. Step 5: Solve for x
    x = 145,253,484,642.96/590,464.20
  6. Step 6: Final answer
    x = 245,998.80

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Double scale
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Similar ratio
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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.