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Finding the Fourth Proportional to 469,113.63, 647,376.41 and 254,253.65

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Solution

The fourth proportional to 469,113.63, 647,376.41 and 254,253.65 is: 350,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,113.63 : 647,376.41 = 254,253.65 : x
  2. Step 2: Convert to fraction form
    469,113.63/647,376.41 = 254,253.65/x
  3. Step 3: Cross multiply
    469,113.63x = 647,376.41 × 254,253.65
  4. Step 4: Simplify right side
    469,113.63x = 164,597,810,658.25
  5. Step 5: Solve for x
    x = 164,597,810,658.25/469,113.63
  6. Step 6: Final answer
    x = 350,869.81

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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.