Home / 353,929.11-488,429.64-192,783.78

Finding the Fourth Proportional to 353,929.11, 488,429.64 and 192,783.78

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Solution

The fourth proportional to 353,929.11, 488,429.64 and 192,783.78 is: 266,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,929.11 : 488,429.64 = 192,783.78 : x
  2. Step 2: Convert to fraction form
    353,929.11/488,429.64 = 192,783.78/x
  3. Step 3: Cross multiply
    353,929.11x = 488,429.64 × 192,783.78
  4. Step 4: Simplify right side
    353,929.11x = 94,161,312,263.24
  5. Step 5: Solve for x
    x = 94,161,312,263.24/353,929.11
  6. Step 6: Final answer
    x = 266,045.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.