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Finding the Fourth Proportional to 358,825.38, 495,160.64 and 197,676.90

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Solution

The fourth proportional to 358,825.38, 495,160.64 and 197,676.90 is: 272,783.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,825.38 : 495,160.64 = 197,676.90 : x
  2. Step 2: Convert to fraction form
    358,825.38/495,160.64 = 197,676.90/x
  3. Step 3: Cross multiply
    358,825.38x = 495,160.64 × 197,676.90
  4. Step 4: Simplify right side
    358,825.38x = 97,881,819,328.83
  5. Step 5: Solve for x
    x = 97,881,819,328.83/358,825.38
  6. Step 6: Final answer
    x = 272,783.99

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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.