Home / 639,246.25-958,999.65-260,163.55

Finding the Fourth Proportional to 639,246.25, 958,999.65 and 260,163.55

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Solution

The fourth proportional to 639,246.25, 958,999.65 and 260,163.55 is: 390,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,246.25 : 958,999.65 = 260,163.55 : x
  2. Step 2: Convert to fraction form
    639,246.25/958,999.65 = 260,163.55/x
  3. Step 3: Cross multiply
    639,246.25x = 958,999.65 × 260,163.55
  4. Step 4: Simplify right side
    639,246.25x = 249,496,753,392.76
  5. Step 5: Solve for x
    x = 249,496,753,392.76/639,246.25
  6. Step 6: Final answer
    x = 390,298.34

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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.