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Finding the Fourth Proportional to 458,276.64, 687,250.92 and 158,676.80

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Solution

The fourth proportional to 458,276.64, 687,250.92 and 158,676.80 is: 237,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,276.64 : 687,250.92 = 158,676.80 : x
  2. Step 2: Convert to fraction form
    458,276.64/687,250.92 = 158,676.80/x
  3. Step 3: Cross multiply
    458,276.64x = 687,250.92 × 158,676.80
  4. Step 4: Simplify right side
    458,276.64x = 109,050,776,782.66
  5. Step 5: Solve for x
    x = 109,050,776,782.66/458,276.64
  6. Step 6: Final answer
    x = 237,958.40

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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.