Home / 819,628.16-1,228,697.96-286,858.55

Finding the Fourth Proportional to 819,628.16, 1,228,697.96 and 286,858.55

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Solution

The fourth proportional to 819,628.16, 1,228,697.96 and 286,858.55 is: 430,027.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,628.16 : 1,228,697.96 = 286,858.55 : x
  2. Step 2: Convert to fraction form
    819,628.16/1,228,697.96 = 286,858.55/x
  3. Step 3: Cross multiply
    819,628.16x = 1,228,697.96 × 286,858.55
  4. Step 4: Simplify right side
    819,628.16x = 352,462,516,831.01
  5. Step 5: Solve for x
    x = 352,462,516,831.01/819,628.16
  6. Step 6: Final answer
    x = 430,027.34

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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.