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Finding the Fourth Proportional to 571,849.74, 789,178.41 and 317,200.86

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Solution

The fourth proportional to 571,849.74, 789,178.41 and 317,200.86 is: 437,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,849.74 : 789,178.41 = 317,200.86 : x
  2. Step 2: Convert to fraction form
    571,849.74/789,178.41 = 317,200.86/x
  3. Step 3: Cross multiply
    571,849.74x = 789,178.41 × 317,200.86
  4. Step 4: Simplify right side
    571,849.74x = 250,328,070,345.43
  5. Step 5: Solve for x
    x = 250,328,070,345.43/571,849.74
  6. Step 6: Final answer
    x = 437,751.48

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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.