Home / 645,780.47-968,707.11-196,515.95

Finding the Fourth Proportional to 645,780.47, 968,707.11 and 196,515.95

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Solution

The fourth proportional to 645,780.47, 968,707.11 and 196,515.95 is: 294,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,780.47 : 968,707.11 = 196,515.95 : x
  2. Step 2: Convert to fraction form
    645,780.47/968,707.11 = 196,515.95/x
  3. Step 3: Cross multiply
    645,780.47x = 968,707.11 × 196,515.95
  4. Step 4: Simplify right side
    645,780.47x = 190,366,397,993.41
  5. Step 5: Solve for x
    x = 190,366,397,993.41/645,780.47
  6. Step 6: Final answer
    x = 294,785.00

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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.