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Finding the Fourth Proportional to 317,862.84, 439,039.26 and 237,646.92

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Solution

The fourth proportional to 317,862.84, 439,039.26 and 237,646.92 is: 328,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,862.84 : 439,039.26 = 237,646.92 : x
  2. Step 2: Convert to fraction form
    317,862.84/439,039.26 = 237,646.92/x
  3. Step 3: Cross multiply
    317,862.84x = 439,039.26 × 237,646.92
  4. Step 4: Simplify right side
    317,862.84x = 104,336,327,898.08
  5. Step 5: Solve for x
    x = 104,336,327,898.08/317,862.84
  6. Step 6: Final answer
    x = 328,243.24

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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.