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Finding the Fourth Proportional to 590,490.80, 885,736.20 and 216,465.20

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Solution

The fourth proportional to 590,490.80, 885,736.20 and 216,465.20 is: 324,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,490.80 : 885,736.20 = 216,465.20 : x
  2. Step 2: Convert to fraction form
    590,490.80/885,736.20 = 216,465.20/x
  3. Step 3: Cross multiply
    590,490.80x = 885,736.20 × 216,465.20
  4. Step 4: Simplify right side
    590,490.80x = 191,731,063,680.24
  5. Step 5: Solve for x
    x = 191,731,063,680.24/590,490.80
  6. Step 6: Final answer
    x = 324,697.80

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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.