Home / 612,864.16-919,296.32-192,172.48

Finding the Fourth Proportional to 612,864.16, 919,296.32 and 192,172.48

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Solution

The fourth proportional to 612,864.16, 919,296.32 and 192,172.48 is: 288,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,864.16 : 919,296.32 = 192,172.48 : x
  2. Step 2: Convert to fraction form
    612,864.16/919,296.32 = 192,172.48/x
  3. Step 3: Cross multiply
    612,864.16x = 919,296.32 × 192,172.48
  4. Step 4: Simplify right side
    612,864.16x = 176,663,453,669.27
  5. Step 5: Solve for x
    x = 176,663,453,669.27/612,864.16
  6. Step 6: Final answer
    x = 288,258.75

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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.