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Finding the Fourth Proportional to 503,132.80, 753,892.80 and 266,166.40

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Solution

The fourth proportional to 503,132.80, 753,892.80 and 266,166.40 is: 398,823.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,132.80 : 753,892.80 = 266,166.40 : x
  2. Step 2: Convert to fraction form
    503,132.80/753,892.80 = 266,166.40/x
  3. Step 3: Cross multiply
    503,132.80x = 753,892.80 × 266,166.40
  4. Step 4: Simplify right side
    503,132.80x = 200,660,932,561.92
  5. Step 5: Solve for x
    x = 200,660,932,561.92/503,132.80
  6. Step 6: Final answer
    x = 398,823.00

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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.