Home / 402,111.15-602,247.78-191,896.71

Finding the Fourth Proportional to 402,111.15, 602,247.78 and 191,896.71

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Solution

The fourth proportional to 402,111.15, 602,247.78 and 191,896.71 is: 287,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,111.15 : 602,247.78 = 191,896.71 : x
  2. Step 2: Convert to fraction form
    402,111.15/602,247.78 = 191,896.71/x
  3. Step 3: Cross multiply
    402,111.15x = 602,247.78 × 191,896.71
  4. Step 4: Simplify right side
    402,111.15x = 115,569,367,586.80
  5. Step 5: Solve for x
    x = 115,569,367,586.80/402,111.15
  6. Step 6: Final answer
    x = 287,406.52

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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.