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Finding the Fourth Proportional to 358,957.36, 495,364.43 and 197,818.16

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Solution

The fourth proportional to 358,957.36, 495,364.43 and 197,818.16 is: 272,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,957.36 : 495,364.43 = 197,818.16 : x
  2. Step 2: Convert to fraction form
    358,957.36/495,364.43 = 197,818.16/x
  3. Step 3: Cross multiply
    358,957.36x = 495,364.43 × 197,818.16
  4. Step 4: Simplify right side
    358,957.36x = 97,992,079,082.96
  5. Step 5: Solve for x
    x = 97,992,079,082.96/358,957.36
  6. Step 6: Final answer
    x = 272,990.87

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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.