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Finding the Fourth Proportional to 705,817.21, 974,033.91 and 383,527.30

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Solution

The fourth proportional to 705,817.21, 974,033.91 and 383,527.30 is: 529,271.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,817.21 : 974,033.91 = 383,527.30 : x
  2. Step 2: Convert to fraction form
    705,817.21/974,033.91 = 383,527.30/x
  3. Step 3: Cross multiply
    705,817.21x = 974,033.91 × 383,527.30
  4. Step 4: Simplify right side
    705,817.21x = 373,568,595,610.74
  5. Step 5: Solve for x
    x = 373,568,595,610.74/705,817.21
  6. Step 6: Final answer
    x = 529,271.02

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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.