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Finding the Fourth Proportional to 530,992.43, 732,777.50 and 289,274.93

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Solution

The fourth proportional to 530,992.43, 732,777.50 and 289,274.93 is: 399,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,992.43 : 732,777.50 = 289,274.93 : x
  2. Step 2: Convert to fraction form
    530,992.43/732,777.50 = 289,274.93/x
  3. Step 3: Cross multiply
    530,992.43x = 732,777.50 × 289,274.93
  4. Step 4: Simplify right side
    530,992.43x = 211,974,160,018.08
  5. Step 5: Solve for x
    x = 211,974,160,018.08/530,992.43
  6. Step 6: Final answer
    x = 399,203.73

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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.