Home / 639,227.40-958,176.90-259,985.40

Finding the Fourth Proportional to 639,227.40, 958,176.90 and 259,985.40

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Solution

The fourth proportional to 639,227.40, 958,176.90 and 259,985.40 is: 389,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,227.40 : 958,176.90 = 259,985.40 : x
  2. Step 2: Convert to fraction form
    639,227.40/958,176.90 = 259,985.40/x
  3. Step 3: Cross multiply
    639,227.40x = 958,176.90 × 259,985.40
  4. Step 4: Simplify right side
    639,227.40x = 249,112,004,617.26
  5. Step 5: Solve for x
    x = 249,112,004,617.26/639,227.40
  6. Step 6: Final answer
    x = 389,707.96

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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.