Home / 630,387.26-869,936.46-343,913.36

Finding the Fourth Proportional to 630,387.26, 869,936.46 and 343,913.36

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Solution

The fourth proportional to 630,387.26, 869,936.46 and 343,913.36 is: 474,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,387.26 : 869,936.46 = 343,913.36 : x
  2. Step 2: Convert to fraction form
    630,387.26/869,936.46 = 343,913.36/x
  3. Step 3: Cross multiply
    630,387.26x = 869,936.46 × 343,913.36
  4. Step 4: Simplify right side
    630,387.26x = 299,182,770,945.11
  5. Step 5: Solve for x
    x = 299,182,770,945.11/630,387.26
  6. Step 6: Final answer
    x = 474,601.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.