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Finding the Fourth Proportional to 528,958.26, 792,659.34 and 312,594.30

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Solution

The fourth proportional to 528,958.26, 792,659.34 and 312,594.30 is: 468,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,958.26 : 792,659.34 = 312,594.30 : x
  2. Step 2: Convert to fraction form
    528,958.26/792,659.34 = 312,594.30/x
  3. Step 3: Cross multiply
    528,958.26x = 792,659.34 × 312,594.30
  4. Step 4: Simplify right side
    528,958.26x = 247,780,791,525.76
  5. Step 5: Solve for x
    x = 247,780,791,525.76/528,958.26
  6. Step 6: Final answer
    x = 468,431.65

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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.