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Finding the Fourth Proportional to 706,253.88, 974,649.58 and 383,985.66

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Solution

The fourth proportional to 706,253.88, 974,649.58 and 383,985.66 is: 529,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,253.88 : 974,649.58 = 383,985.66 : x
  2. Step 2: Convert to fraction form
    706,253.88/974,649.58 = 383,985.66/x
  3. Step 3: Cross multiply
    706,253.88x = 974,649.58 × 383,985.66
  4. Step 4: Simplify right side
    706,253.88x = 374,251,462,245.02
  5. Step 5: Solve for x
    x = 374,251,462,245.02/706,253.88
  6. Step 6: Final answer
    x = 529,910.66

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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.