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Finding the Fourth Proportional to 452,442.52, 678,431.70 and 239,325.44

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Solution

The fourth proportional to 452,442.52, 678,431.70 and 239,325.44 is: 358,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,442.52 : 678,431.70 = 239,325.44 : x
  2. Step 2: Convert to fraction form
    452,442.52/678,431.70 = 239,325.44/x
  3. Step 3: Cross multiply
    452,442.52x = 678,431.70 × 239,325.44
  4. Step 4: Simplify right side
    452,442.52x = 162,365,965,112.45
  5. Step 5: Solve for x
    x = 162,365,965,112.45/452,442.52
  6. Step 6: Final answer
    x = 358,865.40

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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.