Home / 639,809.76-959,921.91-190,534.35

Finding the Fourth Proportional to 639,809.76, 959,921.91 and 190,534.35

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Solution

The fourth proportional to 639,809.76, 959,921.91 and 190,534.35 is: 285,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,809.76 : 959,921.91 = 190,534.35 : x
  2. Step 2: Convert to fraction form
    639,809.76/959,921.91 = 190,534.35/x
  3. Step 3: Cross multiply
    639,809.76x = 959,921.91 × 190,534.35
  4. Step 4: Simplify right side
    639,809.76x = 182,898,097,172.61
  5. Step 5: Solve for x
    x = 182,898,097,172.61/639,809.76
  6. Step 6: Final answer
    x = 285,863.25

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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.