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Finding the Fourth Proportional to 533,536.81, 736,304.39 and 307,255.21

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Solution

The fourth proportional to 533,536.81, 736,304.39 and 307,255.21 is: 424,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,536.81 : 736,304.39 = 307,255.21 : x
  2. Step 2: Convert to fraction form
    533,536.81/736,304.39 = 307,255.21/x
  3. Step 3: Cross multiply
    533,536.81x = 736,304.39 × 307,255.21
  4. Step 4: Simplify right side
    533,536.81x = 226,233,359,973.37
  5. Step 5: Solve for x
    x = 226,233,359,973.37/533,536.81
  6. Step 6: Final answer
    x = 424,025.78

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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.