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Finding the Fourth Proportional to 706,237.18, 974,613.47 and 383,947.49

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Solution

The fourth proportional to 706,237.18, 974,613.47 and 383,947.49 is: 529,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,237.18 : 974,613.47 = 383,947.49 : x
  2. Step 2: Convert to fraction form
    706,237.18/974,613.47 = 383,947.49/x
  3. Step 3: Cross multiply
    706,237.18x = 974,613.47 × 383,947.49
  4. Step 4: Simplify right side
    706,237.18x = 374,200,396,043.49
  5. Step 5: Solve for x
    x = 374,200,396,043.49/706,237.18
  6. Step 6: Final answer
    x = 529,850.89

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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.