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Finding the Fourth Proportional to 706,188.96, 974,529.30 and 383,907.18

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Solution

The fourth proportional to 706,188.96, 974,529.30 and 383,907.18 is: 529,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,188.96 : 974,529.30 = 383,907.18 : x
  2. Step 2: Convert to fraction form
    706,188.96/974,529.30 = 383,907.18/x
  3. Step 3: Cross multiply
    706,188.96x = 974,529.30 × 383,907.18
  4. Step 4: Simplify right side
    706,188.96x = 374,128,795,390.37
  5. Step 5: Solve for x
    x = 374,128,795,390.37/706,188.96
  6. Step 6: Final answer
    x = 529,785.68

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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.