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Finding the Fourth Proportional to 317,889.44, 438,695.16 and 174,658.76

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Solution

The fourth proportional to 317,889.44, 438,695.16 and 174,658.76 is: 241,033.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,889.44 : 438,695.16 = 174,658.76 : x
  2. Step 2: Convert to fraction form
    317,889.44/438,695.16 = 174,658.76/x
  3. Step 3: Cross multiply
    317,889.44x = 438,695.16 × 174,658.76
  4. Step 4: Simplify right side
    317,889.44x = 76,621,952,663.60
  5. Step 5: Solve for x
    x = 76,621,952,663.60/317,889.44
  6. Step 6: Final answer
    x = 241,033.34

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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.