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Finding the Fourth Proportional to 626,288.94, 863,085.51 and 614,772.90

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Solution

The fourth proportional to 626,288.94, 863,085.51 and 614,772.90 is: 847,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,288.94 : 863,085.51 = 614,772.90 : x
  2. Step 2: Convert to fraction form
    626,288.94/863,085.51 = 614,772.90/x
  3. Step 3: Cross multiply
    626,288.94x = 863,085.51 × 614,772.90
  4. Step 4: Simplify right side
    626,288.94x = 530,601,581,930.68
  5. Step 5: Solve for x
    x = 530,601,581,930.68/626,288.94
  6. Step 6: Final answer
    x = 847,215.32

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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.