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Finding the Fourth Proportional to 358,817.66, 495,174.70 and 197,671.60

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Solution

The fourth proportional to 358,817.66, 495,174.70 and 197,671.60 is: 272,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,817.66 : 495,174.70 = 197,671.60 : x
  2. Step 2: Convert to fraction form
    358,817.66/495,174.70 = 197,671.60/x
  3. Step 3: Cross multiply
    358,817.66x = 495,174.70 × 197,671.60
  4. Step 4: Simplify right side
    358,817.66x = 97,881,975,228.52
  5. Step 5: Solve for x
    x = 97,881,975,228.52/358,817.66
  6. Step 6: Final answer
    x = 272,790.29

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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.