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Finding the Fourth Proportional to 449,681.64, 620,596.05 and 256,097.52

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Solution

The fourth proportional to 449,681.64, 620,596.05 and 256,097.52 is: 353,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,681.64 : 620,596.05 = 256,097.52 : x
  2. Step 2: Convert to fraction form
    449,681.64/620,596.05 = 256,097.52/x
  3. Step 3: Cross multiply
    449,681.64x = 620,596.05 × 256,097.52
  4. Step 4: Simplify right side
    449,681.64x = 158,933,109,326.80
  5. Step 5: Solve for x
    x = 158,933,109,326.80/449,681.64
  6. Step 6: Final answer
    x = 353,434.73

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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.