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Finding the Fourth Proportional to 460,351.21, 635,282.70 and 256,404.55

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Solution

The fourth proportional to 460,351.21, 635,282.70 and 256,404.55 is: 353,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,351.21 : 635,282.70 = 256,404.55 : x
  2. Step 2: Convert to fraction form
    460,351.21/635,282.70 = 256,404.55/x
  3. Step 3: Cross multiply
    460,351.21x = 635,282.70 × 256,404.55
  4. Step 4: Simplify right side
    460,351.21x = 162,889,374,816.29
  5. Step 5: Solve for x
    x = 162,889,374,816.29/460,351.21
  6. Step 6: Final answer
    x = 353,837.18

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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.