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Finding the Fourth Proportional to 383,759.64, 575,640.90 and 117,519.12

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Solution

The fourth proportional to 383,759.64, 575,640.90 and 117,519.12 is: 176,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,759.64 : 575,640.90 = 117,519.12 : x
  2. Step 2: Convert to fraction form
    383,759.64/575,640.90 = 117,519.12/x
  3. Step 3: Cross multiply
    383,759.64x = 575,640.90 × 117,519.12
  4. Step 4: Simplify right side
    383,759.64x = 67,648,812,004.01
  5. Step 5: Solve for x
    x = 67,648,812,004.01/383,759.64
  6. Step 6: Final answer
    x = 176,279.12

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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.