Home / 819,624.94-1,228,693.13-286,855.34

Finding the Fourth Proportional to 819,624.94, 1,228,693.13 and 286,855.34

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Solution

The fourth proportional to 819,624.94, 1,228,693.13 and 286,855.34 is: 430,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,624.94 : 1,228,693.13 = 286,855.34 : x
  2. Step 2: Convert to fraction form
    819,624.94/1,228,693.13 = 286,855.34/x
  3. Step 3: Cross multiply
    819,624.94x = 1,228,693.13 × 286,855.34
  4. Step 4: Simplify right side
    819,624.94x = 352,457,177,984.07
  5. Step 5: Solve for x
    x = 352,457,177,984.07/819,624.94
  6. Step 6: Final answer
    x = 430,022.52

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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.