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Finding the Fourth Proportional to 706,108.40, 974,433.06 and 383,818.50

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Solution

The fourth proportional to 706,108.40, 974,433.06 and 383,818.50 is: 529,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,108.40 : 974,433.06 = 383,818.50 : x
  2. Step 2: Convert to fraction form
    706,108.40/974,433.06 = 383,818.50/x
  3. Step 3: Cross multiply
    706,108.40x = 974,433.06 × 383,818.50
  4. Step 4: Simplify right side
    706,108.40x = 374,005,434,090.25
  5. Step 5: Solve for x
    x = 374,005,434,090.25/706,108.40
  6. Step 6: Final answer
    x = 529,671.41

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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.