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Finding the Fourth Proportional to 370,236.16, 510,980.42 and 217,358.66

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Solution

The fourth proportional to 370,236.16, 510,980.42 and 217,358.66 is: 299,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,236.16 : 510,980.42 = 217,358.66 : x
  2. Step 2: Convert to fraction form
    370,236.16/510,980.42 = 217,358.66/x
  3. Step 3: Cross multiply
    370,236.16x = 510,980.42 × 217,358.66
  4. Step 4: Simplify right side
    370,236.16x = 111,066,019,377.44
  5. Step 5: Solve for x
    x = 111,066,019,377.44/370,236.16
  6. Step 6: Final answer
    x = 299,986.96

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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.