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Finding the Fourth Proportional to 464,911.10, 697,366.20 and 127,953.68

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Solution

The fourth proportional to 464,911.10, 697,366.20 and 127,953.68 is: 191,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,911.10 : 697,366.20 = 127,953.68 : x
  2. Step 2: Convert to fraction form
    464,911.10/697,366.20 = 127,953.68/x
  3. Step 3: Cross multiply
    464,911.10x = 697,366.20 × 127,953.68
  4. Step 4: Simplify right side
    464,911.10x = 89,230,571,597.62
  5. Step 5: Solve for x
    x = 89,230,571,597.62/464,911.10
  6. Step 6: Final answer
    x = 191,930.40

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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.