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Finding the Fourth Proportional to 291,628.25, 402,426.43 and 162,560.92

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Solution

The fourth proportional to 291,628.25, 402,426.43 and 162,560.92 is: 224,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,628.25 : 402,426.43 = 162,560.92 : x
  2. Step 2: Convert to fraction form
    291,628.25/402,426.43 = 162,560.92/x
  3. Step 3: Cross multiply
    291,628.25x = 402,426.43 × 162,560.92
  4. Step 4: Simplify right side
    291,628.25x = 65,418,809,599.37
  5. Step 5: Solve for x
    x = 65,418,809,599.37/291,628.25
  6. Step 6: Final answer
    x = 224,322.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.