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Finding the Fourth Proportional to 376,161.57, 519,102.90 and 215,020.08

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Solution

The fourth proportional to 376,161.57, 519,102.90 and 215,020.08 is: 296,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,161.57 : 519,102.90 = 215,020.08 : x
  2. Step 2: Convert to fraction form
    376,161.57/519,102.90 = 215,020.08/x
  3. Step 3: Cross multiply
    376,161.57x = 519,102.90 × 215,020.08
  4. Step 4: Simplify right side
    376,161.57x = 111,617,547,086.23
  5. Step 5: Solve for x
    x = 111,617,547,086.23/376,161.57
  6. Step 6: Final answer
    x = 296,727.67

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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.