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Finding the Fourth Proportional to 540,638.83, 809,776.99 and 273,941.47

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Solution

The fourth proportional to 540,638.83, 809,776.99 and 273,941.47 is: 410,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,638.83 : 809,776.99 = 273,941.47 : x
  2. Step 2: Convert to fraction form
    540,638.83/809,776.99 = 273,941.47/x
  3. Step 3: Cross multiply
    540,638.83x = 809,776.99 × 273,941.47
  4. Step 4: Simplify right side
    540,638.83x = 221,831,499,012.78
  5. Step 5: Solve for x
    x = 221,831,499,012.78/540,638.83
  6. Step 6: Final answer
    x = 410,313.66

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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.