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Finding the Fourth Proportional to 448,576.20, 619,048.98 and 257,627.88

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Solution

The fourth proportional to 448,576.20, 619,048.98 and 257,627.88 is: 355,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,576.20 : 619,048.98 = 257,627.88 : x
  2. Step 2: Convert to fraction form
    448,576.20/619,048.98 = 257,627.88/x
  3. Step 3: Cross multiply
    448,576.20x = 619,048.98 × 257,627.88
  4. Step 4: Simplify right side
    448,576.20x = 159,484,276,333.56
  5. Step 5: Solve for x
    x = 159,484,276,333.56/448,576.20
  6. Step 6: Final answer
    x = 355,534.41

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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.