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Finding the Fourth Proportional to 358,887.41, 495,273.69 and 197,742.40

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Solution

The fourth proportional to 358,887.41, 495,273.69 and 197,742.40 is: 272,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,887.41 : 495,273.69 = 197,742.40 : x
  2. Step 2: Convert to fraction form
    358,887.41/495,273.69 = 197,742.40/x
  3. Step 3: Cross multiply
    358,887.41x = 495,273.69 × 197,742.40
  4. Step 4: Simplify right side
    358,887.41x = 97,936,606,879.27
  5. Step 5: Solve for x
    x = 97,936,606,879.27/358,887.41
  6. Step 6: Final answer
    x = 272,889.50

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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.