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Finding the Fourth Proportional to 358,691.58, 495,007.08 and 197,558.88

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Solution

The fourth proportional to 358,691.58, 495,007.08 and 197,558.88 is: 272,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,691.58 : 495,007.08 = 197,558.88 : x
  2. Step 2: Convert to fraction form
    358,691.58/495,007.08 = 197,558.88/x
  3. Step 3: Cross multiply
    358,691.58x = 495,007.08 × 197,558.88
  4. Step 4: Simplify right side
    358,691.58x = 97,793,044,316.87
  5. Step 5: Solve for x
    x = 97,793,044,316.87/358,691.58
  6. Step 6: Final answer
    x = 272,638.25

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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.