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Finding the Fourth Proportional to 305,862.90, 458,794.35 and 227,130.90

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Solution

The fourth proportional to 305,862.90, 458,794.35 and 227,130.90 is: 340,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,862.90 : 458,794.35 = 227,130.90 : x
  2. Step 2: Convert to fraction form
    305,862.90/458,794.35 = 227,130.90/x
  3. Step 3: Cross multiply
    305,862.90x = 458,794.35 × 227,130.90
  4. Step 4: Simplify right side
    305,862.90x = 104,206,373,630.42
  5. Step 5: Solve for x
    x = 104,206,373,630.42/305,862.90
  6. Step 6: Final answer
    x = 340,696.35

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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.