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Finding the Fourth Proportional to 305,904.90, 458,857.35 and 305,904.90

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Solution

The fourth proportional to 305,904.90, 458,857.35 and 305,904.90 is: 458,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,904.90 : 458,857.35 = 305,904.90 : x
  2. Step 2: Convert to fraction form
    305,904.90/458,857.35 = 305,904.90/x
  3. Step 3: Cross multiply
    305,904.90x = 458,857.35 × 305,904.90
  4. Step 4: Simplify right side
    305,904.90x = 140,366,711,766.02
  5. Step 5: Solve for x
    x = 140,366,711,766.02/305,904.90
  6. Step 6: Final answer
    x = 458,857.35

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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.