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Finding the Fourth Proportional to 366,916.40, 550,374.60 and 340,344.35

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Solution

The fourth proportional to 366,916.40, 550,374.60 and 340,344.35 is: 510,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,916.40 : 550,374.60 = 340,344.35 : x
  2. Step 2: Convert to fraction form
    366,916.40/550,374.60 = 340,344.35/x
  3. Step 3: Cross multiply
    366,916.40x = 550,374.60 × 340,344.35
  4. Step 4: Simplify right side
    366,916.40x = 187,316,885,493.51
  5. Step 5: Solve for x
    x = 187,316,885,493.51/366,916.40
  6. Step 6: Final answer
    x = 510,516.53

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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.