Home / 426,543.37-639,813.23-173,767.48

Finding the Fourth Proportional to 426,543.37, 639,813.23 and 173,767.48

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Solution

The fourth proportional to 426,543.37, 639,813.23 and 173,767.48 is: 260,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,543.37 : 639,813.23 = 173,767.48 : x
  2. Step 2: Convert to fraction form
    426,543.37/639,813.23 = 173,767.48/x
  3. Step 3: Cross multiply
    426,543.37x = 639,813.23 × 173,767.48
  4. Step 4: Simplify right side
    426,543.37x = 111,178,730,831.02
  5. Step 5: Solve for x
    x = 111,178,730,831.02/426,543.37
  6. Step 6: Final answer
    x = 260,650.47

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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.