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Finding the Fourth Proportional to 383,433.40, 575,150.10 and 346,108.60

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Solution

The fourth proportional to 383,433.40, 575,150.10 and 346,108.60 is: 519,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,433.40 : 575,150.10 = 346,108.60 : x
  2. Step 2: Convert to fraction form
    383,433.40/575,150.10 = 346,108.60/x
  3. Step 3: Cross multiply
    383,433.40x = 575,150.10 × 346,108.60
  4. Step 4: Simplify right side
    383,433.40x = 199,064,395,900.86
  5. Step 5: Solve for x
    x = 199,064,395,900.86/383,433.40
  6. Step 6: Final answer
    x = 519,162.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.