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Finding the Fourth Proportional to 377,834.55, 520,524.79 and 262,915.57

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Solution

The fourth proportional to 377,834.55, 520,524.79 and 262,915.57 is: 362,206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,834.55 : 520,524.79 = 262,915.57 : x
  2. Step 2: Convert to fraction form
    377,834.55/520,524.79 = 262,915.57/x
  3. Step 3: Cross multiply
    377,834.55x = 520,524.79 × 262,915.57
  4. Step 4: Simplify right side
    377,834.55x = 136,854,073,334.25
  5. Step 5: Solve for x
    x = 136,854,073,334.25/377,834.55
  6. Step 6: Final answer
    x = 362,206.35

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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.