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Finding the Fourth Proportional to 364,886.64, 547,433.64 and 257,266.80

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Solution

The fourth proportional to 364,886.64, 547,433.64 and 257,266.80 is: 385,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,886.64 : 547,433.64 = 257,266.80 : x
  2. Step 2: Convert to fraction form
    364,886.64/547,433.64 = 257,266.80/x
  3. Step 3: Cross multiply
    364,886.64x = 547,433.64 × 257,266.80
  4. Step 4: Simplify right side
    364,886.64x = 140,836,500,775.15
  5. Step 5: Solve for x
    x = 140,836,500,775.15/364,886.64
  6. Step 6: Final answer
    x = 385,973.30

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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.