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Finding the Fourth Proportional to 590,123.20, 885,622.20 and 432,659.20

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Solution

The fourth proportional to 590,123.20, 885,622.20 and 432,659.20 is: 649,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,123.20 : 885,622.20 = 432,659.20 : x
  2. Step 2: Convert to fraction form
    590,123.20/885,622.20 = 432,659.20/x
  3. Step 3: Cross multiply
    590,123.20x = 885,622.20 × 432,659.20
  4. Step 4: Simplify right side
    590,123.20x = 383,172,592,554.24
  5. Step 5: Solve for x
    x = 383,172,592,554.24/590,123.20
  6. Step 6: Final answer
    x = 649,309.49

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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.