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Finding the Fourth Proportional to 603,753.24, 832,301.46 and 421,900.74

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Solution

The fourth proportional to 603,753.24, 832,301.46 and 421,900.74 is: 581,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,753.24 : 832,301.46 = 421,900.74 : x
  2. Step 2: Convert to fraction form
    603,753.24/832,301.46 = 421,900.74/x
  3. Step 3: Cross multiply
    603,753.24x = 832,301.46 × 421,900.74
  4. Step 4: Simplify right side
    603,753.24x = 351,148,601,877.08
  5. Step 5: Solve for x
    x = 351,148,601,877.08/603,753.24
  6. Step 6: Final answer
    x = 581,609.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.