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Finding the Fourth Proportional to 641,594.76, 885,622.11 and 369,771.24

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Solution

The fourth proportional to 641,594.76, 885,622.11 and 369,771.24 is: 510,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,594.76 : 885,622.11 = 369,771.24 : x
  2. Step 2: Convert to fraction form
    641,594.76/885,622.11 = 369,771.24/x
  3. Step 3: Cross multiply
    641,594.76x = 885,622.11 × 369,771.24
  4. Step 4: Simplify right side
    641,594.76x = 327,477,585,786.12
  5. Step 5: Solve for x
    x = 327,477,585,786.12/641,594.76
  6. Step 6: Final answer
    x = 510,411.88

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Double scale
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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.