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Finding the Fourth Proportional to 545,947.60, 818,921.40 and 251,035.60

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Solution

The fourth proportional to 545,947.60, 818,921.40 and 251,035.60 is: 376,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,947.60 : 818,921.40 = 251,035.60 : x
  2. Step 2: Convert to fraction form
    545,947.60/818,921.40 = 251,035.60/x
  3. Step 3: Cross multiply
    545,947.60x = 818,921.40 × 251,035.60
  4. Step 4: Simplify right side
    545,947.60x = 205,578,425,001.84
  5. Step 5: Solve for x
    x = 205,578,425,001.84/545,947.60
  6. Step 6: Final answer
    x = 376,553.40

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Double scale
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Similar ratio
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1.5x scale

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.