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Finding the Fourth Proportional to 534,763.40, 802,145.10 and 219,446.60

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Solution

The fourth proportional to 534,763.40, 802,145.10 and 219,446.60 is: 329,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,763.40 : 802,145.10 = 219,446.60 : x
  2. Step 2: Convert to fraction form
    534,763.40/802,145.10 = 219,446.60/x
  3. Step 3: Cross multiply
    534,763.40x = 802,145.10 × 219,446.60
  4. Step 4: Simplify right side
    534,763.40x = 176,028,014,901.66
  5. Step 5: Solve for x
    x = 176,028,014,901.66/534,763.40
  6. Step 6: Final answer
    x = 329,169.90

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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.