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Finding the Fourth Proportional to 706,218.12, 974,600.10 and 383,950.31

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Solution

The fourth proportional to 706,218.12, 974,600.10 and 383,950.31 is: 529,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,218.12 : 974,600.10 = 383,950.31 : x
  2. Step 2: Convert to fraction form
    706,218.12/974,600.10 = 383,950.31/x
  3. Step 3: Cross multiply
    706,218.12x = 974,600.10 × 383,950.31
  4. Step 4: Simplify right side
    706,218.12x = 374,198,005,648.03
  5. Step 5: Solve for x
    x = 374,198,005,648.03/706,218.12
  6. Step 6: Final answer
    x = 529,861.80

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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.