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Finding the Fourth Proportional to 508,866.12, 763,212.78 and 134,926.92

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Solution

The fourth proportional to 508,866.12, 763,212.78 and 134,926.92 is: 202,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,866.12 : 763,212.78 = 134,926.92 : x
  2. Step 2: Convert to fraction form
    508,866.12/763,212.78 = 134,926.92/x
  3. Step 3: Cross multiply
    508,866.12x = 763,212.78 × 134,926.92
  4. Step 4: Simplify right side
    508,866.12x = 102,977,949,710.04
  5. Step 5: Solve for x
    x = 102,977,949,710.04/508,866.12
  6. Step 6: Final answer
    x = 202,367.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.