Home / 626,419.67-864,459.69-339,939.75

Finding the Fourth Proportional to 626,419.67, 864,459.69 and 339,939.75

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Solution

The fourth proportional to 626,419.67, 864,459.69 and 339,939.75 is: 469,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,419.67 : 864,459.69 = 339,939.75 : x
  2. Step 2: Convert to fraction form
    626,419.67/864,459.69 = 339,939.75/x
  3. Step 3: Cross multiply
    626,419.67x = 864,459.69 × 339,939.75
  4. Step 4: Simplify right side
    626,419.67x = 293,864,210,903.68
  5. Step 5: Solve for x
    x = 293,864,210,903.68/626,419.67
  6. Step 6: Final answer
    x = 469,117.15

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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.