Home / 682,816.19-942,145.65-392,371.65

Finding the Fourth Proportional to 682,816.19, 942,145.65 and 392,371.65

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Solution

The fourth proportional to 682,816.19, 942,145.65 and 392,371.65 is: 541,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,816.19 : 942,145.65 = 392,371.65 : x
  2. Step 2: Convert to fraction form
    682,816.19/942,145.65 = 392,371.65/x
  3. Step 3: Cross multiply
    682,816.19x = 942,145.65 × 392,371.65
  4. Step 4: Simplify right side
    682,816.19x = 369,671,243,230.82
  5. Step 5: Solve for x
    x = 369,671,243,230.82/682,816.19
  6. Step 6: Final answer
    x = 541,392.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.