Home / 797,979.60-1,196,969.40-640,515.60

Finding the Fourth Proportional to 797,979.60, 1,196,969.40 and 640,515.60

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Solution

The fourth proportional to 797,979.60, 1,196,969.40 and 640,515.60 is: 960,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,979.60 : 1,196,969.40 = 640,515.60 : x
  2. Step 2: Convert to fraction form
    797,979.60/1,196,969.40 = 640,515.60/x
  3. Step 3: Cross multiply
    797,979.60x = 1,196,969.40 × 640,515.60
  4. Step 4: Simplify right side
    797,979.60x = 766,677,573,422.64
  5. Step 5: Solve for x
    x = 766,677,573,422.64/797,979.60
  6. Step 6: Final answer
    x = 960,773.40

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1.5x scale

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.