Home / 405,537.08-607,938.64-192,172.12

Finding the Fourth Proportional to 405,537.08, 607,938.64 and 192,172.12

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Solution

The fourth proportional to 405,537.08, 607,938.64 and 192,172.12 is: 288,084.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,537.08 : 607,938.64 = 192,172.12 : x
  2. Step 2: Convert to fraction form
    405,537.08/607,938.64 = 192,172.12/x
  3. Step 3: Cross multiply
    405,537.08x = 607,938.64 × 192,172.12
  4. Step 4: Simplify right side
    405,537.08x = 116,828,857,278.72
  5. Step 5: Solve for x
    x = 116,828,857,278.72/405,537.08
  6. Step 6: Final answer
    x = 288,084.28

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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.