Home / 819,236.70-1,229,408.28-286,762.14

Finding the Fourth Proportional to 819,236.70, 1,229,408.28 and 286,762.14

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Solution

The fourth proportional to 819,236.70, 1,229,408.28 and 286,762.14 is: 430,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,236.70 : 1,229,408.28 = 286,762.14 : x
  2. Step 2: Convert to fraction form
    819,236.70/1,229,408.28 = 286,762.14/x
  3. Step 3: Cross multiply
    819,236.70x = 1,229,408.28 × 286,762.14
  4. Step 4: Simplify right side
    819,236.70x = 352,547,749,306.52
  5. Step 5: Solve for x
    x = 352,547,749,306.52/819,236.70
  6. Step 6: Final answer
    x = 430,336.86

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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.