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Finding the Fourth Proportional to 452,911.50, 679,351.68 and 115,955.16

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Solution

The fourth proportional to 452,911.50, 679,351.68 and 115,955.16 is: 173,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,911.50 : 679,351.68 = 115,955.16 : x
  2. Step 2: Convert to fraction form
    452,911.50/679,351.68 = 115,955.16/x
  3. Step 3: Cross multiply
    452,911.50x = 679,351.68 × 115,955.16
  4. Step 4: Simplify right side
    452,911.50x = 78,774,332,750.67
  5. Step 5: Solve for x
    x = 78,774,332,750.67/452,911.50
  6. Step 6: Final answer
    x = 173,928.75

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1.5x scale

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.