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Finding the Fourth Proportional to 706,268.57, 974,645.82 and 383,978.69

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Solution

The fourth proportional to 706,268.57, 974,645.82 and 383,978.69 is: 529,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,268.57 : 974,645.82 = 383,978.69 : x
  2. Step 2: Convert to fraction form
    706,268.57/974,645.82 = 383,978.69/x
  3. Step 3: Cross multiply
    706,268.57x = 974,645.82 × 383,978.69
  4. Step 4: Simplify right side
    706,268.57x = 374,243,225,177.58
  5. Step 5: Solve for x
    x = 374,243,225,177.58/706,268.57
  6. Step 6: Final answer
    x = 529,887.98

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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.