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Finding the Fourth Proportional to 706,220.37, 974,603.21 and 383,952.56

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Solution

The fourth proportional to 706,220.37, 974,603.21 and 383,952.56 is: 529,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,220.37 : 974,603.21 = 383,952.56 : x
  2. Step 2: Convert to fraction form
    706,220.37/974,603.21 = 383,952.56/x
  3. Step 3: Cross multiply
    706,220.37x = 974,603.21 × 383,952.56
  4. Step 4: Simplify right side
    706,220.37x = 374,201,390,670.94
  5. Step 5: Solve for x
    x = 374,201,390,670.94/706,220.37
  6. Step 6: Final answer
    x = 529,864.91

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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.