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Finding the Fourth Proportional to 448,951.76, 619,566.49 and 245,015.80

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Solution

The fourth proportional to 448,951.76, 619,566.49 and 245,015.80 is: 338,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,951.76 : 619,566.49 = 245,015.80 : x
  2. Step 2: Convert to fraction form
    448,951.76/619,566.49 = 245,015.80/x
  3. Step 3: Cross multiply
    448,951.76x = 619,566.49 × 245,015.80
  4. Step 4: Simplify right side
    448,951.76x = 151,803,577,957.90
  5. Step 5: Solve for x
    x = 151,803,577,957.90/448,951.76
  6. Step 6: Final answer
    x = 338,128.93

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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.