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Finding the Fourth Proportional to 358,178.28, 494,302.64 and 197,030.40

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Solution

The fourth proportional to 358,178.28, 494,302.64 and 197,030.40 is: 271,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,178.28 : 494,302.64 = 197,030.40 : x
  2. Step 2: Convert to fraction form
    358,178.28/494,302.64 = 197,030.40/x
  3. Step 3: Cross multiply
    358,178.28x = 494,302.64 × 197,030.40
  4. Step 4: Simplify right side
    358,178.28x = 97,392,646,880.26
  5. Step 5: Solve for x
    x = 97,392,646,880.26/358,178.28
  6. Step 6: Final answer
    x = 271,911.09

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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.