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Finding the Fourth Proportional to 433,988.37, 650,479.54 and 256,644.54

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Solution

The fourth proportional to 433,988.37, 650,479.54 and 256,644.54 is: 384,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,988.37 : 650,479.54 = 256,644.54 : x
  2. Step 2: Convert to fraction form
    433,988.37/650,479.54 = 256,644.54/x
  3. Step 3: Cross multiply
    433,988.37x = 650,479.54 × 256,644.54
  4. Step 4: Simplify right side
    433,988.37x = 166,942,022,322.71
  5. Step 5: Solve for x
    x = 166,942,022,322.71/433,988.37
  6. Step 6: Final answer
    x = 384,669.35

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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.