Home / 645,779.97-968,706.36-196,515.45

Finding the Fourth Proportional to 645,779.97, 968,706.36 and 196,515.45

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Solution

The fourth proportional to 645,779.97, 968,706.36 and 196,515.45 is: 294,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,779.97 : 968,706.36 = 196,515.45 : x
  2. Step 2: Convert to fraction form
    645,779.97/968,706.36 = 196,515.45/x
  3. Step 3: Cross multiply
    645,779.97x = 968,706.36 × 196,515.45
  4. Step 4: Simplify right side
    645,779.97x = 190,365,766,253.26
  5. Step 5: Solve for x
    x = 190,365,766,253.26/645,779.97
  6. Step 6: Final answer
    x = 294,784.25

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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.