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Finding the Fourth Proportional to 482,964.72, 666,714.24 and 289,464.72

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Solution

The fourth proportional to 482,964.72, 666,714.24 and 289,464.72 is: 399,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,964.72 : 666,714.24 = 289,464.72 : x
  2. Step 2: Convert to fraction form
    482,964.72/666,714.24 = 289,464.72/x
  3. Step 3: Cross multiply
    482,964.72x = 666,714.24 × 289,464.72
  4. Step 4: Simplify right side
    482,964.72x = 192,990,250,801.61
  5. Step 5: Solve for x
    x = 192,990,250,801.61/482,964.72
  6. Step 6: Final answer
    x = 399,594.92

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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.