Home / 612,811.76-919,365.28-192,087.62

Finding the Fourth Proportional to 612,811.76, 919,365.28 and 192,087.62

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Solution

The fourth proportional to 612,811.76, 919,365.28 and 192,087.62 is: 288,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,811.76 : 919,365.28 = 192,087.62 : x
  2. Step 2: Convert to fraction form
    612,811.76/919,365.28 = 192,087.62/x
  3. Step 3: Cross multiply
    612,811.76x = 919,365.28 × 192,087.62
  4. Step 4: Simplify right side
    612,811.76x = 176,598,688,545.83
  5. Step 5: Solve for x
    x = 176,598,688,545.83/612,811.76
  6. Step 6: Final answer
    x = 288,177.71

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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.