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Finding the Fourth Proportional to 358,988.76, 495,382.23 and 197,834.81

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Solution

The fourth proportional to 358,988.76, 495,382.23 and 197,834.81 is: 272,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,988.76 : 495,382.23 = 197,834.81 : x
  2. Step 2: Convert to fraction form
    358,988.76/495,382.23 = 197,834.81/x
  3. Step 3: Cross multiply
    358,988.76x = 495,382.23 × 197,834.81
  4. Step 4: Simplify right side
    358,988.76x = 98,003,846,872.52
  5. Step 5: Solve for x
    x = 98,003,846,872.52/358,988.76
  6. Step 6: Final answer
    x = 272,999.76

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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.