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Finding the Fourth Proportional to 358,985.64, 495,403.48 and 197,846.54

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Solution

The fourth proportional to 358,985.64, 495,403.48 and 197,846.54 is: 273,030.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,985.64 : 495,403.48 = 197,846.54 : x
  2. Step 2: Convert to fraction form
    358,985.64/495,403.48 = 197,846.54/x
  3. Step 3: Cross multiply
    358,985.64x = 495,403.48 × 197,846.54
  4. Step 4: Simplify right side
    358,985.64x = 98,013,864,421.96
  5. Step 5: Solve for x
    x = 98,013,864,421.96/358,985.64
  6. Step 6: Final answer
    x = 273,030.04

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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.