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Finding the Fourth Proportional to 358,698.30, 495,026.04 and 197,553.30

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Solution

The fourth proportional to 358,698.30, 495,026.04 and 197,553.30 is: 272,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,698.30 : 495,026.04 = 197,553.30 : x
  2. Step 2: Convert to fraction form
    358,698.30/495,026.04 = 197,553.30/x
  3. Step 3: Cross multiply
    358,698.30x = 495,026.04 × 197,553.30
  4. Step 4: Simplify right side
    358,698.30x = 97,794,027,790.07
  5. Step 5: Solve for x
    x = 97,794,027,790.07/358,698.30
  6. Step 6: Final answer
    x = 272,635.89

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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.