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Finding the Fourth Proportional to 305,689.60, 458,534.40 and 235,705.60

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Solution

The fourth proportional to 305,689.60, 458,534.40 and 235,705.60 is: 353,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,689.60 : 458,534.40 = 235,705.60 : x
  2. Step 2: Convert to fraction form
    305,689.60/458,534.40 = 235,705.60/x
  3. Step 3: Cross multiply
    305,689.60x = 458,534.40 × 235,705.60
  4. Step 4: Simplify right side
    305,689.60x = 108,079,125,872.64
  5. Step 5: Solve for x
    x = 108,079,125,872.64/305,689.60
  6. Step 6: Final answer
    x = 353,558.40

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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.