Home / 648,918.56-973,380.06-199,636.40

Finding the Fourth Proportional to 648,918.56, 973,380.06 and 199,636.40

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Solution

The fourth proportional to 648,918.56, 973,380.06 and 199,636.40 is: 299,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,918.56 : 973,380.06 = 199,636.40 : x
  2. Step 2: Convert to fraction form
    648,918.56/973,380.06 = 199,636.40/x
  3. Step 3: Cross multiply
    648,918.56x = 973,380.06 × 199,636.40
  4. Step 4: Simplify right side
    648,918.56x = 194,322,086,143.28
  5. Step 5: Solve for x
    x = 194,322,086,143.28/648,918.56
  6. Step 6: Final answer
    x = 299,455.28

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1.5x scale

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.