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Finding the Fourth Proportional to 568,086.12, 784,005.66 and 326,415.30

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Solution

The fourth proportional to 568,086.12, 784,005.66 and 326,415.30 is: 450,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,086.12 : 784,005.66 = 326,415.30 : x
  2. Step 2: Convert to fraction form
    568,086.12/784,005.66 = 326,415.30/x
  3. Step 3: Cross multiply
    568,086.12x = 784,005.66 × 326,415.30
  4. Step 4: Simplify right side
    568,086.12x = 255,911,442,710.60
  5. Step 5: Solve for x
    x = 255,911,442,710.60/568,086.12
  6. Step 6: Final answer
    x = 450,480.01

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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.