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Finding the Fourth Proportional to 448,954.45, 619,570.20 and 245,018.49

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Solution

The fourth proportional to 448,954.45, 619,570.20 and 245,018.49 is: 338,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,954.45 : 619,570.20 = 245,018.49 : x
  2. Step 2: Convert to fraction form
    448,954.45/619,570.20 = 245,018.49/x
  3. Step 3: Cross multiply
    448,954.45x = 619,570.20 × 245,018.49
  4. Step 4: Simplify right side
    448,954.45x = 151,806,154,853.00
  5. Step 5: Solve for x
    x = 151,806,154,853.00/448,954.45
  6. Step 6: Final answer
    x = 338,132.64

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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.