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Finding the Fourth Proportional to 679,105.50, 937,194.75 and 377,299.50

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Solution

The fourth proportional to 679,105.50, 937,194.75 and 377,299.50 is: 520,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,105.50 : 937,194.75 = 377,299.50 : x
  2. Step 2: Convert to fraction form
    679,105.50/937,194.75 = 377,299.50/x
  3. Step 3: Cross multiply
    679,105.50x = 937,194.75 × 377,299.50
  4. Step 4: Simplify right side
    679,105.50x = 353,603,110,577.63
  5. Step 5: Solve for x
    x = 353,603,110,577.63/679,105.50
  6. Step 6: Final answer
    x = 520,689.51

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1.5x scale

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.