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Finding the Fourth Proportional to 317,650.64, 438,354.84 and 174,409.44

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Solution

The fourth proportional to 317,650.64, 438,354.84 and 174,409.44 is: 240,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,650.64 : 438,354.84 = 174,409.44 : x
  2. Step 2: Convert to fraction form
    317,650.64/438,354.84 = 174,409.44/x
  3. Step 3: Cross multiply
    317,650.64x = 438,354.84 × 174,409.44
  4. Step 4: Simplify right side
    317,650.64x = 76,453,222,165.69
  5. Step 5: Solve for x
    x = 76,453,222,165.69/317,650.64
  6. Step 6: Final answer
    x = 240,683.36

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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.