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Finding the Fourth Proportional to 539,863.80, 809,795.70 and 362,916.60

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Solution

The fourth proportional to 539,863.80, 809,795.70 and 362,916.60 is: 544,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,863.80 : 809,795.70 = 362,916.60 : x
  2. Step 2: Convert to fraction form
    539,863.80/809,795.70 = 362,916.60/x
  3. Step 3: Cross multiply
    539,863.80x = 809,795.70 × 362,916.60
  4. Step 4: Simplify right side
    539,863.80x = 293,888,302,138.62
  5. Step 5: Solve for x
    x = 293,888,302,138.62/539,863.80
  6. Step 6: Final answer
    x = 544,374.90

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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.