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Finding the Fourth Proportional to 626,361.81, 864,331.79 and 368,249.34

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Solution

The fourth proportional to 626,361.81, 864,331.79 and 368,249.34 is: 508,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,361.81 : 864,331.79 = 368,249.34 : x
  2. Step 2: Convert to fraction form
    626,361.81/864,331.79 = 368,249.34/x
  3. Step 3: Cross multiply
    626,361.81x = 864,331.79 × 368,249.34
  4. Step 4: Simplify right side
    626,361.81x = 318,289,608,782.35
  5. Step 5: Solve for x
    x = 318,289,608,782.35/626,361.81
  6. Step 6: Final answer
    x = 508,156.15

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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.