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Finding the Fourth Proportional to 358,915.60, 495,216.85 and 236,395

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Solution

The fourth proportional to 358,915.60, 495,216.85 and 236,395 is: 326,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,915.60 : 495,216.85 = 236,395 : x
  2. Step 2: Convert to fraction form
    358,915.60/495,216.85 = 236,395/x
  3. Step 3: Cross multiply
    358,915.60x = 495,216.85 × 236,395
  4. Step 4: Simplify right side
    358,915.60x = 117,066,787,255.75
  5. Step 5: Solve for x
    x = 117,066,787,255.75/358,915.60
  6. Step 6: Final answer
    x = 326,168.01

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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.