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Finding the Fourth Proportional to 539,477.80, 809,216.70 and 362,069.80

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Solution

The fourth proportional to 539,477.80, 809,216.70 and 362,069.80 is: 543,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,477.80 : 809,216.70 = 362,069.80 : x
  2. Step 2: Convert to fraction form
    539,477.80/809,216.70 = 362,069.80/x
  3. Step 3: Cross multiply
    539,477.80x = 809,216.70 × 362,069.80
  4. Step 4: Simplify right side
    539,477.80x = 292,992,928,725.66
  5. Step 5: Solve for x
    x = 292,992,928,725.66/539,477.80
  6. Step 6: Final answer
    x = 543,104.70

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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.