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Finding the Fourth Proportional to 448,548.56, 619,001.64 and 247,351.76

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Solution

The fourth proportional to 448,548.56, 619,001.64 and 247,351.76 is: 341,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,548.56 : 619,001.64 = 247,351.76 : x
  2. Step 2: Convert to fraction form
    448,548.56/619,001.64 = 247,351.76/x
  3. Step 3: Cross multiply
    448,548.56x = 619,001.64 × 247,351.76
  4. Step 4: Simplify right side
    448,548.56x = 153,111,145,096.89
  5. Step 5: Solve for x
    x = 153,111,145,096.89/448,548.56
  6. Step 6: Final answer
    x = 341,347.98

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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.