Home / 939,411.45-1,296,392.99-509,692.41

Finding the Fourth Proportional to 939,411.45, 1,296,392.99 and 509,692.41

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Solution

The fourth proportional to 939,411.45, 1,296,392.99 and 509,692.41 is: 703,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,411.45 : 1,296,392.99 = 509,692.41 : x
  2. Step 2: Convert to fraction form
    939,411.45/1,296,392.99 = 509,692.41/x
  3. Step 3: Cross multiply
    939,411.45x = 1,296,392.99 × 509,692.41
  4. Step 4: Simplify right side
    939,411.45x = 660,761,664,831.74
  5. Step 5: Solve for x
    x = 660,761,664,831.74/939,411.45
  6. Step 6: Final answer
    x = 703,378.34

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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.