Home / 626,418.17-864,457.62-339,938.25

Finding the Fourth Proportional to 626,418.17, 864,457.62 and 339,938.25

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Solution

The fourth proportional to 626,418.17, 864,457.62 and 339,938.25 is: 469,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,418.17 : 864,457.62 = 339,938.25 : x
  2. Step 2: Convert to fraction form
    626,418.17/864,457.62 = 339,938.25/x
  3. Step 3: Cross multiply
    626,418.17x = 864,457.62 × 339,938.25
  4. Step 4: Simplify right side
    626,418.17x = 293,862,213,756.28
  5. Step 5: Solve for x
    x = 293,862,213,756.28/626,418.17
  6. Step 6: Final answer
    x = 469,115.09

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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.