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Finding the Fourth Proportional to 578,137.43, 866,854.98 and 289,613.52

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Solution

The fourth proportional to 578,137.43, 866,854.98 and 289,613.52 is: 434,244.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,137.43 : 866,854.98 = 289,613.52 : x
  2. Step 2: Convert to fraction form
    578,137.43/866,854.98 = 289,613.52/x
  3. Step 3: Cross multiply
    578,137.43x = 866,854.98 × 289,613.52
  4. Step 4: Simplify right side
    578,137.43x = 251,052,924,828.37
  5. Step 5: Solve for x
    x = 251,052,924,828.37/578,137.43
  6. Step 6: Final answer
    x = 434,244.37

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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.