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Finding the Fourth Proportional to 363,065.76, 501,083.28 and 217,878.12

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Solution

The fourth proportional to 363,065.76, 501,083.28 and 217,878.12 is: 300,703.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,065.76 : 501,083.28 = 217,878.12 : x
  2. Step 2: Convert to fraction form
    363,065.76/501,083.28 = 217,878.12/x
  3. Step 3: Cross multiply
    363,065.76x = 501,083.28 × 217,878.12
  4. Step 4: Simplify right side
    363,065.76x = 109,175,083,009.83
  5. Step 5: Solve for x
    x = 109,175,083,009.83/363,065.76
  6. Step 6: Final answer
    x = 300,703.33

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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.