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Finding the Fourth Proportional to 451,088.39, 622,348.74 and 257,356.94

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Solution

The fourth proportional to 451,088.39, 622,348.74 and 257,356.94 is: 355,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,088.39 : 622,348.74 = 257,356.94 : x
  2. Step 2: Convert to fraction form
    451,088.39/622,348.74 = 257,356.94/x
  3. Step 3: Cross multiply
    451,088.39x = 622,348.74 × 257,356.94
  4. Step 4: Simplify right side
    451,088.39x = 160,165,764,227.51
  5. Step 5: Solve for x
    x = 160,165,764,227.51/451,088.39
  6. Step 6: Final answer
    x = 355,065.14

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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.