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Finding the Fourth Proportional to 489,562.88, 675,561.35 and 271,783.25

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Solution

The fourth proportional to 489,562.88, 675,561.35 and 271,783.25 is: 375,041.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,562.88 : 675,561.35 = 271,783.25 : x
  2. Step 2: Convert to fraction form
    489,562.88/675,561.35 = 271,783.25/x
  3. Step 3: Cross multiply
    489,562.88x = 675,561.35 × 271,783.25
  4. Step 4: Simplify right side
    489,562.88x = 183,606,254,540.67
  5. Step 5: Solve for x
    x = 183,606,254,540.67/489,562.88
  6. Step 6: Final answer
    x = 375,041.21

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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.