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Finding the Fourth Proportional to 353,494.83, 530,242.25 and 291,034.11

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Solution

The fourth proportional to 353,494.83, 530,242.25 and 291,034.11 is: 436,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,494.83 : 530,242.25 = 291,034.11 : x
  2. Step 2: Convert to fraction form
    353,494.83/530,242.25 = 291,034.11/x
  3. Step 3: Cross multiply
    353,494.83x = 530,242.25 × 291,034.11
  4. Step 4: Simplify right side
    353,494.83x = 154,318,579,857.98
  5. Step 5: Solve for x
    x = 154,318,579,857.98/353,494.83
  6. Step 6: Final answer
    x = 436,551.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.