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Finding the Fourth Proportional to 450,034.03, 621,025.14 and 256,487.05

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Solution

The fourth proportional to 450,034.03, 621,025.14 and 256,487.05 is: 353,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,034.03 : 621,025.14 = 256,487.05 : x
  2. Step 2: Convert to fraction form
    450,034.03/621,025.14 = 256,487.05/x
  3. Step 3: Cross multiply
    450,034.03x = 621,025.14 × 256,487.05
  4. Step 4: Simplify right side
    450,034.03x = 159,284,906,134.44
  5. Step 5: Solve for x
    x = 159,284,906,134.44/450,034.03
  6. Step 6: Final answer
    x = 353,939.69

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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.