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Finding the Fourth Proportional to 365,381.19, 504,290.21 and 212,466.69

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Solution

The fourth proportional to 365,381.19, 504,290.21 and 212,466.69 is: 293,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,381.19 : 504,290.21 = 212,466.69 : x
  2. Step 2: Convert to fraction form
    365,381.19/504,290.21 = 212,466.69/x
  3. Step 3: Cross multiply
    365,381.19x = 504,290.21 × 212,466.69
  4. Step 4: Simplify right side
    365,381.19x = 107,144,870,655.77
  5. Step 5: Solve for x
    x = 107,144,870,655.77/365,381.19
  6. Step 6: Final answer
    x = 293,241.34

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Double scale
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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.