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Finding the Fourth Proportional to 534,689.62, 802,135.58 and 214,866.38

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Solution

The fourth proportional to 534,689.62, 802,135.58 and 214,866.38 is: 322,340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,689.62 : 802,135.58 = 214,866.38 : x
  2. Step 2: Convert to fraction form
    534,689.62/802,135.58 = 214,866.38/x
  3. Step 3: Cross multiply
    534,689.62x = 802,135.58 × 214,866.38
  4. Step 4: Simplify right side
    534,689.62x = 172,351,969,274.81
  5. Step 5: Solve for x
    x = 172,351,969,274.81/534,689.62
  6. Step 6: Final answer
    x = 322,340.22

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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.