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Finding the Fourth Proportional to 526,956.54, 727,619.22 and 486,655.56

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Solution

The fourth proportional to 526,956.54, 727,619.22 and 486,655.56 is: 671,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,956.54 : 727,619.22 = 486,655.56 : x
  2. Step 2: Convert to fraction form
    526,956.54/727,619.22 = 486,655.56/x
  3. Step 3: Cross multiply
    526,956.54x = 727,619.22 × 486,655.56
  4. Step 4: Simplify right side
    526,956.54x = 354,099,938,975.86
  5. Step 5: Solve for x
    x = 354,099,938,975.86/526,956.54
  6. Step 6: Final answer
    x = 671,971.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.