Home / 962,685.64-1,328,729.46-640,409.32

Finding the Fourth Proportional to 962,685.64, 1,328,729.46 and 640,409.32

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Solution

The fourth proportional to 962,685.64, 1,328,729.46 and 640,409.32 is: 883,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    962,685.64 : 1,328,729.46 = 640,409.32 : x
  2. Step 2: Convert to fraction form
    962,685.64/1,328,729.46 = 640,409.32/x
  3. Step 3: Cross multiply
    962,685.64x = 1,328,729.46 × 640,409.32
  4. Step 4: Simplify right side
    962,685.64x = 850,930,729,942.57
  5. Step 5: Solve for x
    x = 850,930,729,942.57/962,685.64
  6. Step 6: Final answer
    x = 883,913.39

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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.