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Finding the Fourth Proportional to 371,615.82, 512,986.68 and 250,920.42

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Solution

The fourth proportional to 371,615.82, 512,986.68 and 250,920.42 is: 346,376.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,615.82 : 512,986.68 = 250,920.42 : x
  2. Step 2: Convert to fraction form
    371,615.82/512,986.68 = 250,920.42/x
  3. Step 3: Cross multiply
    371,615.82x = 512,986.68 × 250,920.42
  4. Step 4: Simplify right side
    371,615.82x = 128,718,833,200.01
  5. Step 5: Solve for x
    x = 128,718,833,200.01/371,615.82
  6. Step 6: Final answer
    x = 346,376.09

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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.