Home / 612,848.34-919,272.78-192,157.02

Finding the Fourth Proportional to 612,848.34, 919,272.78 and 192,157.02

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Solution

The fourth proportional to 612,848.34, 919,272.78 and 192,157.02 is: 288,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,848.34 : 919,272.78 = 192,157.02 : x
  2. Step 2: Convert to fraction form
    612,848.34/919,272.78 = 192,157.02/x
  3. Step 3: Cross multiply
    612,848.34x = 919,272.78 × 192,157.02
  4. Step 4: Simplify right side
    612,848.34x = 176,644,717,971.92
  5. Step 5: Solve for x
    x = 176,644,717,971.92/612,848.34
  6. Step 6: Final answer
    x = 288,235.61

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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.