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Finding the Fourth Proportional to 504,387.99, 696,056.31 and 274,947.12

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Solution

The fourth proportional to 504,387.99, 696,056.31 and 274,947.12 is: 379,427.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,387.99 : 696,056.31 = 274,947.12 : x
  2. Step 2: Convert to fraction form
    504,387.99/696,056.31 = 274,947.12/x
  3. Step 3: Cross multiply
    504,387.99x = 696,056.31 × 274,947.12
  4. Step 4: Simplify right side
    504,387.99x = 191,378,677,792.33
  5. Step 5: Solve for x
    x = 191,378,677,792.33/504,387.99
  6. Step 6: Final answer
    x = 379,427.51

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Similar ratio
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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.