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Finding the Fourth Proportional to 624,107.70, 936,161.55 and 551,790.90

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Solution

The fourth proportional to 624,107.70, 936,161.55 and 551,790.90 is: 827,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,107.70 : 936,161.55 = 551,790.90 : x
  2. Step 2: Convert to fraction form
    624,107.70/936,161.55 = 551,790.90/x
  3. Step 3: Cross multiply
    624,107.70x = 936,161.55 × 551,790.90
  4. Step 4: Simplify right side
    624,107.70x = 516,565,424,219.90
  5. Step 5: Solve for x
    x = 516,565,424,219.90/624,107.70
  6. Step 6: Final answer
    x = 827,686.35

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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.