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Finding the Fourth Proportional to 540,778.09, 746,254.20 and 295,754.47

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Solution

The fourth proportional to 540,778.09, 746,254.20 and 295,754.47 is: 408,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,778.09 : 746,254.20 = 295,754.47 : x
  2. Step 2: Convert to fraction form
    540,778.09/746,254.20 = 295,754.47/x
  3. Step 3: Cross multiply
    540,778.09x = 746,254.20 × 295,754.47
  4. Step 4: Simplify right side
    540,778.09x = 220,708,017,183.78
  5. Step 5: Solve for x
    x = 220,708,017,183.78/540,778.09
  6. Step 6: Final answer
    x = 408,130.47

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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.