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Finding the Fourth Proportional to 639,054, 958,598.28 and 195,822

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Solution

The fourth proportional to 639,054, 958,598.28 and 195,822 is: 293,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,054 : 958,598.28 = 195,822 : x
  2. Step 2: Convert to fraction form
    639,054/958,598.28 = 195,822/x
  3. Step 3: Cross multiply
    639,054x = 958,598.28 × 195,822
  4. Step 4: Simplify right side
    639,054x = 187,714,632,386.16
  5. Step 5: Solve for x
    x = 187,714,632,386.16/639,054
  6. Step 6: Final answer
    x = 293,738.30

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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.