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Finding the Fourth Proportional to 613,244.60, 918,117.30 and 543,260.60

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Solution

The fourth proportional to 613,244.60, 918,117.30 and 543,260.60 is: 813,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,244.60 : 918,117.30 = 543,260.60 : x
  2. Step 2: Convert to fraction form
    613,244.60/918,117.30 = 543,260.60/x
  3. Step 3: Cross multiply
    613,244.60x = 918,117.30 × 543,260.60
  4. Step 4: Simplify right side
    613,244.60x = 498,776,955,268.38
  5. Step 5: Solve for x
    x = 498,776,955,268.38/613,244.60
  6. Step 6: Final answer
    x = 813,340.97

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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.