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Finding the Fourth Proportional to 384,916.60, 577,374.90 and 104,433.40

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Solution

The fourth proportional to 384,916.60, 577,374.90 and 104,433.40 is: 156,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,916.60 : 577,374.90 = 104,433.40 : x
  2. Step 2: Convert to fraction form
    384,916.60/577,374.90 = 104,433.40/x
  3. Step 3: Cross multiply
    384,916.60x = 577,374.90 × 104,433.40
  4. Step 4: Simplify right side
    384,916.60x = 60,297,223,881.66
  5. Step 5: Solve for x
    x = 60,297,223,881.66/384,916.60
  6. Step 6: Final answer
    x = 156,650.10

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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.