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Finding the Fourth Proportional to 449,251.39, 619,963.77 and 245,302.19

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Solution

The fourth proportional to 449,251.39, 619,963.77 and 245,302.19 is: 338,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,251.39 : 619,963.77 = 245,302.19 : x
  2. Step 2: Convert to fraction form
    449,251.39/619,963.77 = 245,302.19/x
  3. Step 3: Cross multiply
    449,251.39x = 619,963.77 × 245,302.19
  4. Step 4: Simplify right side
    449,251.39x = 152,078,470,501.66
  5. Step 5: Solve for x
    x = 152,078,470,501.66/449,251.39
  6. Step 6: Final answer
    x = 338,515.30

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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.