Home / 639,557.08-959,168.55-190,156.93

Finding the Fourth Proportional to 639,557.08, 959,168.55 and 190,156.93

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Solution

The fourth proportional to 639,557.08, 959,168.55 and 190,156.93 is: 285,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,557.08 : 959,168.55 = 190,156.93 : x
  2. Step 2: Convert to fraction form
    639,557.08/959,168.55 = 190,156.93/x
  3. Step 3: Cross multiply
    639,557.08x = 959,168.55 × 190,156.93
  4. Step 4: Simplify right side
    639,557.08x = 182,392,546,820.55
  5. Step 5: Solve for x
    x = 182,392,546,820.55/639,557.08
  6. Step 6: Final answer
    x = 285,185.72

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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.