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Finding the Fourth Proportional to 706,191.21, 974,532.33 and 383,909.31

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Solution

The fourth proportional to 706,191.21, 974,532.33 and 383,909.31 is: 529,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,191.21 : 974,532.33 = 383,909.31 : x
  2. Step 2: Convert to fraction form
    706,191.21/974,532.33 = 383,909.31/x
  3. Step 3: Cross multiply
    706,191.21x = 974,532.33 × 383,909.31
  4. Step 4: Simplify right side
    706,191.21x = 374,132,034,382.99
  5. Step 5: Solve for x
    x = 374,132,034,382.99/706,191.21
  6. Step 6: Final answer
    x = 529,788.57

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1.5x scale

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.