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Finding the Fourth Proportional to 449,679.68, 620,593.35 and 256,095.59

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Solution

The fourth proportional to 449,679.68, 620,593.35 and 256,095.59 is: 353,432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,679.68 : 620,593.35 = 256,095.59 : x
  2. Step 2: Convert to fraction form
    449,679.68/620,593.35 = 256,095.59/x
  3. Step 3: Cross multiply
    449,679.68x = 620,593.35 × 256,095.59
  4. Step 4: Simplify right side
    449,679.68x = 158,931,216,055.00
  5. Step 5: Solve for x
    x = 158,931,216,055.00/449,679.68
  6. Step 6: Final answer
    x = 353,432.06

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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.