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Finding the Fourth Proportional to 539,722.88, 744,803.37 and 298,000.25

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Solution

The fourth proportional to 539,722.88, 744,803.37 and 298,000.25 is: 411,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,722.88 : 744,803.37 = 298,000.25 : x
  2. Step 2: Convert to fraction form
    539,722.88/744,803.37 = 298,000.25/x
  3. Step 3: Cross multiply
    539,722.88x = 744,803.37 × 298,000.25
  4. Step 4: Simplify right side
    539,722.88x = 221,951,590,460.84
  5. Step 5: Solve for x
    x = 221,951,590,460.84/539,722.88
  6. Step 6: Final answer
    x = 411,232.50

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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.