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Finding the Fourth Proportional to 449,267.99, 620,015.07 and 245,337.86

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Solution

The fourth proportional to 449,267.99, 620,015.07 and 245,337.86 is: 338,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,267.99 : 620,015.07 = 245,337.86 : x
  2. Step 2: Convert to fraction form
    449,267.99/620,015.07 = 245,337.86/x
  3. Step 3: Cross multiply
    449,267.99x = 620,015.07 × 245,337.86
  4. Step 4: Simplify right side
    449,267.99x = 152,113,172,911.61
  5. Step 5: Solve for x
    x = 152,113,172,911.61/449,267.99
  6. Step 6: Final answer
    x = 338,580.04

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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.