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Finding the Fourth Proportional to 468,069.64, 645,933.91 and 253,207.82

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Solution

The fourth proportional to 468,069.64, 645,933.91 and 253,207.82 is: 349,425.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,069.64 : 645,933.91 = 253,207.82 : x
  2. Step 2: Convert to fraction form
    468,069.64/645,933.91 = 253,207.82/x
  3. Step 3: Cross multiply
    468,069.64x = 645,933.91 × 253,207.82
  4. Step 4: Simplify right side
    468,069.64x = 163,555,516,582.16
  5. Step 5: Solve for x
    x = 163,555,516,582.16/468,069.64
  6. Step 6: Final answer
    x = 349,425.61

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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.