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Finding the Fourth Proportional to 398,386.21, 597,403.50 and 114,012.01

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Solution

The fourth proportional to 398,386.21, 597,403.50 and 114,012.01 is: 170,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,386.21 : 597,403.50 = 114,012.01 : x
  2. Step 2: Convert to fraction form
    398,386.21/597,403.50 = 114,012.01/x
  3. Step 3: Cross multiply
    398,386.21x = 597,403.50 × 114,012.01
  4. Step 4: Simplify right side
    398,386.21x = 68,111,174,776.56
  5. Step 5: Solve for x
    x = 68,111,174,776.56/398,386.21
  6. Step 6: Final answer
    x = 170,967.70

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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.