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Finding the Fourth Proportional to 379,901.91, 524,277.59 and 216,582.57

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Solution

The fourth proportional to 379,901.91, 524,277.59 and 216,582.57 is: 298,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,901.91 : 524,277.59 = 216,582.57 : x
  2. Step 2: Convert to fraction form
    379,901.91/524,277.59 = 216,582.57/x
  3. Step 3: Cross multiply
    379,901.91x = 524,277.59 × 216,582.57
  4. Step 4: Simplify right side
    379,901.91x = 113,549,387,835.61
  5. Step 5: Solve for x
    x = 113,549,387,835.61/379,901.91
  6. Step 6: Final answer
    x = 298,891.33

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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.