Home / 819,957.01-1,229,408.67-340,515.53

Finding the Fourth Proportional to 819,957.01, 1,229,408.67 and 340,515.53

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Solution

The fourth proportional to 819,957.01, 1,229,408.67 and 340,515.53 is: 510,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,957.01 : 1,229,408.67 = 340,515.53 : x
  2. Step 2: Convert to fraction form
    819,957.01/1,229,408.67 = 340,515.53/x
  3. Step 3: Cross multiply
    819,957.01x = 1,229,408.67 × 340,515.53
  4. Step 4: Simplify right side
    819,957.01x = 418,632,739,364.84
  5. Step 5: Solve for x
    x = 418,632,739,364.84/819,957.01
  6. Step 6: Final answer
    x = 510,554.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.