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Finding the Fourth Proportional to 458,272.64, 687,186.72 and 268,794.92

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Solution

The fourth proportional to 458,272.64, 687,186.72 and 268,794.92 is: 403,062.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,272.64 : 687,186.72 = 268,794.92 : x
  2. Step 2: Convert to fraction form
    458,272.64/687,186.72 = 268,794.92/x
  3. Step 3: Cross multiply
    458,272.64x = 687,186.72 × 268,794.92
  4. Step 4: Simplify right side
    458,272.64x = 184,712,299,427.46
  5. Step 5: Solve for x
    x = 184,712,299,427.46/458,272.64
  6. Step 6: Final answer
    x = 403,062.03

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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.