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Finding the Fourth Proportional to 536,811.80, 805,217.70 and 359,864.60

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Solution

The fourth proportional to 536,811.80, 805,217.70 and 359,864.60 is: 539,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,811.80 : 805,217.70 = 359,864.60 : x
  2. Step 2: Convert to fraction form
    536,811.80/805,217.70 = 359,864.60/x
  3. Step 3: Cross multiply
    536,811.80x = 805,217.70 × 359,864.60
  4. Step 4: Simplify right side
    536,811.80x = 289,769,345,523.42
  5. Step 5: Solve for x
    x = 289,769,345,523.42/536,811.80
  6. Step 6: Final answer
    x = 539,796.90

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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.