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Finding the Fourth Proportional to 448,957.42, 619,574.27 and 245,021.42

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Solution

The fourth proportional to 448,957.42, 619,574.27 and 245,021.42 is: 338,136.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,957.42 : 619,574.27 = 245,021.42 : x
  2. Step 2: Convert to fraction form
    448,957.42/619,574.27 = 245,021.42/x
  3. Step 3: Cross multiply
    448,957.42x = 619,574.27 × 245,021.42
  4. Step 4: Simplify right side
    448,957.42x = 151,808,967,754.69
  5. Step 5: Solve for x
    x = 151,808,967,754.69/448,957.42
  6. Step 6: Final answer
    x = 338,136.67

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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.