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Finding the Fourth Proportional to 889,602.15, 1,334,576.03 and 384,162.15

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Solution

The fourth proportional to 889,602.15, 1,334,576.03 and 384,162.15 is: 576,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,602.15 : 1,334,576.03 = 384,162.15 : x
  2. Step 2: Convert to fraction form
    889,602.15/1,334,576.03 = 384,162.15/x
  3. Step 3: Cross multiply
    889,602.15x = 1,334,576.03 × 384,162.15
  4. Step 4: Simplify right side
    889,602.15x = 512,693,595,102.45
  5. Step 5: Solve for x
    x = 512,693,595,102.45/889,602.15
  6. Step 6: Final answer
    x = 576,317.85

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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.