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Finding the Fourth Proportional to 440,871.99, 607,832.29 and 285,546.93

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Solution

The fourth proportional to 440,871.99, 607,832.29 and 285,546.93 is: 393,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,871.99 : 607,832.29 = 285,546.93 : x
  2. Step 2: Convert to fraction form
    440,871.99/607,832.29 = 285,546.93/x
  3. Step 3: Cross multiply
    440,871.99x = 607,832.29 × 285,546.93
  4. Step 4: Simplify right side
    440,871.99x = 173,564,639,897.47
  5. Step 5: Solve for x
    x = 173,564,639,897.47/440,871.99
  6. Step 6: Final answer
    x = 393,684.89

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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.