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Finding the Fourth Proportional to 364,986.80, 547,019.40 and 323,514.80

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Solution

The fourth proportional to 364,986.80, 547,019.40 and 323,514.80 is: 484,863.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,986.80 : 547,019.40 = 323,514.80 : x
  2. Step 2: Convert to fraction form
    364,986.80/547,019.40 = 323,514.80/x
  3. Step 3: Cross multiply
    364,986.80x = 547,019.40 × 323,514.80
  4. Step 4: Simplify right side
    364,986.80x = 176,968,871,787.12
  5. Step 5: Solve for x
    x = 176,968,871,787.12/364,986.80
  6. Step 6: Final answer
    x = 484,863.76

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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.