Home / 664,343.10-996,417.45-190,979.10

Finding the Fourth Proportional to 664,343.10, 996,417.45 and 190,979.10

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Solution

The fourth proportional to 664,343.10, 996,417.45 and 190,979.10 is: 286,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,343.10 : 996,417.45 = 190,979.10 : x
  2. Step 2: Convert to fraction form
    664,343.10/996,417.45 = 190,979.10/x
  3. Step 3: Cross multiply
    664,343.10x = 996,417.45 × 190,979.10
  4. Step 4: Simplify right side
    664,343.10x = 190,294,907,825.30
  5. Step 5: Solve for x
    x = 190,294,907,825.30/664,343.10
  6. Step 6: Final answer
    x = 286,440.71

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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.