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Finding the Fourth Proportional to 384,880.01, 531,152.94 and 212,794.80

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Solution

The fourth proportional to 384,880.01, 531,152.94 and 212,794.80 is: 293,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,880.01 : 531,152.94 = 212,794.80 : x
  2. Step 2: Convert to fraction form
    384,880.01/531,152.94 = 212,794.80/x
  3. Step 3: Cross multiply
    384,880.01x = 531,152.94 × 212,794.80
  4. Step 4: Simplify right side
    384,880.01x = 113,026,582,442.87
  5. Step 5: Solve for x
    x = 113,026,582,442.87/384,880.01
  6. Step 6: Final answer
    x = 293,667.07

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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.