Home / 626,389.12-864,419.34-339,909.23

Finding the Fourth Proportional to 626,389.12, 864,419.34 and 339,909.23

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Solution

The fourth proportional to 626,389.12, 864,419.34 and 339,909.23 is: 469,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,389.12 : 864,419.34 = 339,909.23 : x
  2. Step 2: Convert to fraction form
    626,389.12/864,419.34 = 339,909.23/x
  3. Step 3: Cross multiply
    626,389.12x = 864,419.34 × 339,909.23
  4. Step 4: Simplify right side
    626,389.12x = 293,824,106,234.87
  5. Step 5: Solve for x
    x = 293,824,106,234.87/626,389.12
  6. Step 6: Final answer
    x = 469,076.01

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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.