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Finding the Fourth Proportional to 383,446.68, 575,171.50 and 117,206.16

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Solution

The fourth proportional to 383,446.68, 575,171.50 and 117,206.16 is: 175,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,446.68 : 575,171.50 = 117,206.16 : x
  2. Step 2: Convert to fraction form
    383,446.68/575,171.50 = 117,206.16/x
  3. Step 3: Cross multiply
    383,446.68x = 575,171.50 × 117,206.16
  4. Step 4: Simplify right side
    383,446.68x = 67,413,642,856.44
  5. Step 5: Solve for x
    x = 67,413,642,856.44/383,446.68
  6. Step 6: Final answer
    x = 175,809.69

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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.