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Finding the Fourth Proportional to 568,154.88, 784,126.52 and 326,484.55

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Solution

The fourth proportional to 568,154.88, 784,126.52 and 326,484.55 is: 450,590.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,154.88 : 784,126.52 = 326,484.55 : x
  2. Step 2: Convert to fraction form
    568,154.88/784,126.52 = 326,484.55/x
  3. Step 3: Cross multiply
    568,154.88x = 784,126.52 × 326,484.55
  4. Step 4: Simplify right side
    568,154.88x = 256,005,194,228.44
  5. Step 5: Solve for x
    x = 256,005,194,228.44/568,154.88
  6. Step 6: Final answer
    x = 450,590.50

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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.