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Finding the Fourth Proportional to 504,928.80, 757,684.80 and 189,417.60

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Solution

The fourth proportional to 504,928.80, 757,684.80 and 189,417.60 is: 284,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,928.80 : 757,684.80 = 189,417.60 : x
  2. Step 2: Convert to fraction form
    504,928.80/757,684.80 = 189,417.60/x
  3. Step 3: Cross multiply
    504,928.80x = 757,684.80 × 189,417.60
  4. Step 4: Simplify right side
    504,928.80x = 143,518,836,372.48
  5. Step 5: Solve for x
    x = 143,518,836,372.48/504,928.80
  6. Step 6: Final answer
    x = 284,235.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.