Home / 648,680.90-973,114.22-199,439.49

Finding the Fourth Proportional to 648,680.90, 973,114.22 and 199,439.49

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Solution

The fourth proportional to 648,680.90, 973,114.22 and 199,439.49 is: 299,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,680.90 : 973,114.22 = 199,439.49 : x
  2. Step 2: Convert to fraction form
    648,680.90/973,114.22 = 199,439.49/x
  3. Step 3: Cross multiply
    648,680.90x = 973,114.22 × 199,439.49
  4. Step 4: Simplify right side
    648,680.90x = 194,077,403,748.55
  5. Step 5: Solve for x
    x = 194,077,403,748.55/648,680.90
  6. Step 6: Final answer
    x = 299,187.79

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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.