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Finding the Fourth Proportional to 541,215.60, 811,896.30 and 186,338.40

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Solution

The fourth proportional to 541,215.60, 811,896.30 and 186,338.40 is: 279,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,215.60 : 811,896.30 = 186,338.40 : x
  2. Step 2: Convert to fraction form
    541,215.60/811,896.30 = 186,338.40/x
  3. Step 3: Cross multiply
    541,215.60x = 811,896.30 × 186,338.40
  4. Step 4: Simplify right side
    541,215.60x = 151,287,457,507.92
  5. Step 5: Solve for x
    x = 151,287,457,507.92/541,215.60
  6. Step 6: Final answer
    x = 279,532.70

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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.