Home / 612,430.05-918,585.68-185,969.57

Finding the Fourth Proportional to 612,430.05, 918,585.68 and 185,969.57

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Solution

The fourth proportional to 612,430.05, 918,585.68 and 185,969.57 is: 278,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,430.05 : 918,585.68 = 185,969.57 : x
  2. Step 2: Convert to fraction form
    612,430.05/918,585.68 = 185,969.57/x
  3. Step 3: Cross multiply
    612,430.05x = 918,585.68 × 185,969.57
  4. Step 4: Simplify right side
    612,430.05x = 170,828,978,394.98
  5. Step 5: Solve for x
    x = 170,828,978,394.98/612,430.05
  6. Step 6: Final answer
    x = 278,936.31

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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.