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Finding the Fourth Proportional to 325,276.74, 448,796.57 and 187,421.90

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Solution

The fourth proportional to 325,276.74, 448,796.57 and 187,421.90 is: 258,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,276.74 : 448,796.57 = 187,421.90 : x
  2. Step 2: Convert to fraction form
    325,276.74/448,796.57 = 187,421.90/x
  3. Step 3: Cross multiply
    325,276.74x = 448,796.57 × 187,421.90
  4. Step 4: Simplify right side
    325,276.74x = 84,114,302,681.79
  5. Step 5: Solve for x
    x = 84,114,302,681.79/325,276.74
  6. Step 6: Final answer
    x = 258,593.05

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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.