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Finding the Fourth Proportional to 418,863.85, 623,558.33 and 416,372.74

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Solution

The fourth proportional to 418,863.85, 623,558.33 and 416,372.74 is: 619,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,863.85 : 623,558.33 = 416,372.74 : x
  2. Step 2: Convert to fraction form
    418,863.85/623,558.33 = 416,372.74/x
  3. Step 3: Cross multiply
    418,863.85x = 623,558.33 × 416,372.74
  4. Step 4: Simplify right side
    418,863.85x = 259,632,690,411.92
  5. Step 5: Solve for x
    x = 259,632,690,411.92/418,863.85
  6. Step 6: Final answer
    x = 619,849.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.