Home / 682,798.83-942,121.69-392,354.28

Finding the Fourth Proportional to 682,798.83, 942,121.69 and 392,354.28

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Solution

The fourth proportional to 682,798.83, 942,121.69 and 392,354.28 is: 541,368.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,798.83 : 942,121.69 = 392,354.28 : x
  2. Step 2: Convert to fraction form
    682,798.83/942,121.69 = 392,354.28/x
  3. Step 3: Cross multiply
    682,798.83x = 942,121.69 × 392,354.28
  4. Step 4: Simplify right side
    682,798.83x = 369,645,477,352.33
  5. Step 5: Solve for x
    x = 369,645,477,352.33/682,798.83
  6. Step 6: Final answer
    x = 541,368.06

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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.