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Finding the Fourth Proportional to 358,488.75, 494,747.43 and 197,376.51

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Solution

The fourth proportional to 358,488.75, 494,747.43 and 197,376.51 is: 272,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,488.75 : 494,747.43 = 197,376.51 : x
  2. Step 2: Convert to fraction form
    358,488.75/494,747.43 = 197,376.51/x
  3. Step 3: Cross multiply
    358,488.75x = 494,747.43 × 197,376.51
  4. Step 4: Simplify right side
    358,488.75x = 97,651,521,064.87
  5. Step 5: Solve for x
    x = 97,651,521,064.87/358,488.75
  6. Step 6: Final answer
    x = 272,397.73

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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.