Home / 426,335.67-639,566.69-141,933.33

Finding the Fourth Proportional to 426,335.67, 639,566.69 and 141,933.33

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Solution

The fourth proportional to 426,335.67, 639,566.69 and 141,933.33 is: 212,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,335.67 : 639,566.69 = 141,933.33 : x
  2. Step 2: Convert to fraction form
    426,335.67/639,566.69 = 141,933.33/x
  3. Step 3: Cross multiply
    426,335.67x = 639,566.69 × 141,933.33
  4. Step 4: Simplify right side
    426,335.67x = 90,775,829,359.11
  5. Step 5: Solve for x
    x = 90,775,829,359.11/426,335.67
  6. Step 6: Final answer
    x = 212,921.03

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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.