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Finding the Fourth Proportional to 543,797.61, 814,858.07 and 291,111.63

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Solution

The fourth proportional to 543,797.61, 814,858.07 and 291,111.63 is: 436,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,797.61 : 814,858.07 = 291,111.63 : x
  2. Step 2: Convert to fraction form
    543,797.61/814,858.07 = 291,111.63/x
  3. Step 3: Cross multiply
    543,797.61x = 814,858.07 × 291,111.63
  4. Step 4: Simplify right side
    543,797.61x = 237,214,659,520.80
  5. Step 5: Solve for x
    x = 237,214,659,520.80/543,797.61
  6. Step 6: Final answer
    x = 436,218.65

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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.