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Finding the Fourth Proportional to 358,256.70, 494,401.91 and 197,112.22

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Solution

The fourth proportional to 358,256.70, 494,401.91 and 197,112.22 is: 272,019.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,256.70 : 494,401.91 = 197,112.22 : x
  2. Step 2: Convert to fraction form
    358,256.70/494,401.91 = 197,112.22/x
  3. Step 3: Cross multiply
    358,256.70x = 494,401.91 × 197,112.22
  4. Step 4: Simplify right side
    358,256.70x = 97,452,655,830.77
  5. Step 5: Solve for x
    x = 97,452,655,830.77/358,256.70
  6. Step 6: Final answer
    x = 272,019.07

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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.