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Finding the Fourth Proportional to 619,404.30, 853,873.20 and 437,795.82

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Solution

The fourth proportional to 619,404.30, 853,873.20 and 437,795.82 is: 603,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,404.30 : 853,873.20 = 437,795.82 : x
  2. Step 2: Convert to fraction form
    619,404.30/853,873.20 = 437,795.82/x
  3. Step 3: Cross multiply
    619,404.30x = 853,873.20 × 437,795.82
  4. Step 4: Simplify right side
    619,404.30x = 373,822,117,770.02
  5. Step 5: Solve for x
    x = 373,822,117,770.02/619,404.30
  6. Step 6: Final answer
    x = 603,518.76

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1.5x scale

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.