Home / 626,643.24-864,783.34-340,163.30

Finding the Fourth Proportional to 626,643.24, 864,783.34 and 340,163.30

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Solution

The fourth proportional to 626,643.24, 864,783.34 and 340,163.30 is: 469,433.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,643.24 : 864,783.34 = 340,163.30 : x
  2. Step 2: Convert to fraction form
    626,643.24/864,783.34 = 340,163.30/x
  3. Step 3: Cross multiply
    626,643.24x = 864,783.34 × 340,163.30
  4. Step 4: Simplify right side
    626,643.24x = 294,167,554,719.42
  5. Step 5: Solve for x
    x = 294,167,554,719.42/626,643.24
  6. Step 6: Final answer
    x = 469,433.86

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Double scale
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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.