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Finding the Fourth Proportional to 365,830.10, 549,911.55 and 344,834.90

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Solution

The fourth proportional to 365,830.10, 549,911.55 and 344,834.90 is: 518,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,830.10 : 549,911.55 = 344,834.90 : x
  2. Step 2: Convert to fraction form
    365,830.10/549,911.55 = 344,834.90/x
  3. Step 3: Cross multiply
    365,830.10x = 549,911.55 × 344,834.90
  4. Step 4: Simplify right side
    365,830.10x = 189,628,694,353.10
  5. Step 5: Solve for x
    x = 189,628,694,353.10/365,830.10
  6. Step 6: Final answer
    x = 518,351.81

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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.