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Finding the Fourth Proportional to 384,807.40, 577,211.08 and 104,317.36

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Solution

The fourth proportional to 384,807.40, 577,211.08 and 104,317.36 is: 156,476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,807.40 : 577,211.08 = 104,317.36 : x
  2. Step 2: Convert to fraction form
    384,807.40/577,211.08 = 104,317.36/x
  3. Step 3: Cross multiply
    384,807.40x = 577,211.08 × 104,317.36
  4. Step 4: Simplify right side
    384,807.40x = 60,213,136,028.35
  5. Step 5: Solve for x
    x = 60,213,136,028.35/384,807.40
  6. Step 6: Final answer
    x = 156,476.03

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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.