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Finding the Fourth Proportional to 643,583.83, 965,531.83 and 194,277.86

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Solution

The fourth proportional to 643,583.83, 965,531.83 and 194,277.86 is: 291,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,583.83 : 965,531.83 = 194,277.86 : x
  2. Step 2: Convert to fraction form
    643,583.83/965,531.83 = 194,277.86/x
  3. Step 3: Cross multiply
    643,583.83x = 965,531.83 × 194,277.86
  4. Step 4: Simplify right side
    643,583.83x = 187,581,457,694.28
  5. Step 5: Solve for x
    x = 187,581,457,694.28/643,583.83
  6. Step 6: Final answer
    x = 291,463.91

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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.