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Finding the Fourth Proportional to 574,690.50, 792,299.88 and 402,376.68

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Solution

The fourth proportional to 574,690.50, 792,299.88 and 402,376.68 is: 554,738.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,690.50 : 792,299.88 = 402,376.68 : x
  2. Step 2: Convert to fraction form
    574,690.50/792,299.88 = 402,376.68/x
  3. Step 3: Cross multiply
    574,690.50x = 792,299.88 × 402,376.68
  4. Step 4: Simplify right side
    574,690.50x = 318,802,995,278.80
  5. Step 5: Solve for x
    x = 318,802,995,278.80/574,690.50
  6. Step 6: Final answer
    x = 554,738.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.