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Finding the Fourth Proportional to 398,312.95, 597,745.37 and 158,402.27

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Solution

The fourth proportional to 398,312.95, 597,745.37 and 158,402.27 is: 237,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,312.95 : 597,745.37 = 158,402.27 : x
  2. Step 2: Convert to fraction form
    398,312.95/597,745.37 = 158,402.27/x
  3. Step 3: Cross multiply
    398,312.95x = 597,745.37 × 158,402.27
  4. Step 4: Simplify right side
    398,312.95x = 94,684,223,489.99
  5. Step 5: Solve for x
    x = 94,684,223,489.99/398,312.95
  6. Step 6: Final answer
    x = 237,713.14

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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.