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Finding the Fourth Proportional to 486,205.86, 671,010.66 and 271,365.92

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Solution

The fourth proportional to 486,205.86, 671,010.66 and 271,365.92 is: 374,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,205.86 : 671,010.66 = 271,365.92 : x
  2. Step 2: Convert to fraction form
    486,205.86/671,010.66 = 271,365.92/x
  3. Step 3: Cross multiply
    486,205.86x = 671,010.66 × 271,365.92
  4. Step 4: Simplify right side
    486,205.86x = 182,089,421,725.65
  5. Step 5: Solve for x
    x = 182,089,421,725.65/486,205.86
  6. Step 6: Final answer
    x = 374,510.96

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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.