Home / 626,418.12-864,457.57-339,938.21

Finding the Fourth Proportional to 626,418.12, 864,457.57 and 339,938.21

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Solution

The fourth proportional to 626,418.12, 864,457.57 and 339,938.21 is: 469,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,418.12 : 864,457.57 = 339,938.21 : x
  2. Step 2: Convert to fraction form
    626,418.12/864,457.57 = 339,938.21/x
  3. Step 3: Cross multiply
    626,418.12x = 864,457.57 × 339,938.21
  4. Step 4: Simplify right side
    626,418.12x = 293,862,153,157.23
  5. Step 5: Solve for x
    x = 293,862,153,157.23/626,418.12
  6. Step 6: Final answer
    x = 469,115.03

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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.