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Finding the Fourth Proportional to 609,538.80, 851,254.80 and 609,538.80

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Solution

The fourth proportional to 609,538.80, 851,254.80 and 609,538.80 is: 851,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,538.80 : 851,254.80 = 609,538.80 : x
  2. Step 2: Convert to fraction form
    609,538.80/851,254.80 = 609,538.80/x
  3. Step 3: Cross multiply
    609,538.80x = 851,254.80 × 609,538.80
  4. Step 4: Simplify right side
    609,538.80x = 518,872,829,286.24
  5. Step 5: Solve for x
    x = 518,872,829,286.24/609,538.80
  6. Step 6: Final answer
    x = 851,254.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.