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Finding the Fourth Proportional to 577,433.88, 866,404.01 and 274,047.15

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Solution

The fourth proportional to 577,433.88, 866,404.01 and 274,047.15 is: 411,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,433.88 : 866,404.01 = 274,047.15 : x
  2. Step 2: Convert to fraction form
    577,433.88/866,404.01 = 274,047.15/x
  3. Step 3: Cross multiply
    577,433.88x = 866,404.01 × 274,047.15
  4. Step 4: Simplify right side
    577,433.88x = 237,435,549,689.07
  5. Step 5: Solve for x
    x = 237,435,549,689.07/577,433.88
  6. Step 6: Final answer
    x = 411,190.89

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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.