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Finding the Fourth Proportional to 611,707.96, 844,392.41 and 407,684.43

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Solution

The fourth proportional to 611,707.96, 844,392.41 and 407,684.43 is: 562,761.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,707.96 : 844,392.41 = 407,684.43 : x
  2. Step 2: Convert to fraction form
    611,707.96/844,392.41 = 407,684.43/x
  3. Step 3: Cross multiply
    611,707.96x = 844,392.41 × 407,684.43
  4. Step 4: Simplify right side
    611,707.96x = 344,245,636,328.75
  5. Step 5: Solve for x
    x = 344,245,636,328.75/611,707.96
  6. Step 6: Final answer
    x = 562,761.42

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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.