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Finding the Fourth Proportional to 634,503.75, 950,486.67 and 381,644.61

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Solution

The fourth proportional to 634,503.75, 950,486.67 and 381,644.61 is: 571,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,503.75 : 950,486.67 = 381,644.61 : x
  2. Step 2: Convert to fraction form
    634,503.75/950,486.67 = 381,644.61/x
  3. Step 3: Cross multiply
    634,503.75x = 950,486.67 × 381,644.61
  4. Step 4: Simplify right side
    634,503.75x = 362,748,114,482.35
  5. Step 5: Solve for x
    x = 362,748,114,482.35/634,503.75
  6. Step 6: Final answer
    x = 571,703.66

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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.