Home / 819,237.70-1,229,409.78-286,763.14

Finding the Fourth Proportional to 819,237.70, 1,229,409.78 and 286,763.14

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Solution

The fourth proportional to 819,237.70, 1,229,409.78 and 286,763.14 is: 430,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,237.70 : 1,229,409.78 = 286,763.14 : x
  2. Step 2: Convert to fraction form
    819,237.70/1,229,409.78 = 286,763.14/x
  3. Step 3: Cross multiply
    819,237.70x = 1,229,409.78 × 286,763.14
  4. Step 4: Simplify right side
    819,237.70x = 352,549,408,859.51
  5. Step 5: Solve for x
    x = 352,549,408,859.51/819,237.70
  6. Step 6: Final answer
    x = 430,338.36

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Double scale
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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.