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Finding the Fourth Proportional to 317,614.51, 438,311.68 and 174,371.48

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Solution

The fourth proportional to 317,614.51, 438,311.68 and 174,371.48 is: 240,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,614.51 : 438,311.68 = 174,371.48 : x
  2. Step 2: Convert to fraction form
    317,614.51/438,311.68 = 174,371.48/x
  3. Step 3: Cross multiply
    317,614.51x = 438,311.68 × 174,371.48
  4. Step 4: Simplify right side
    317,614.51x = 76,429,053,715.40
  5. Step 5: Solve for x
    x = 76,429,053,715.40/317,614.51
  6. Step 6: Final answer
    x = 240,634.64

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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.