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Finding the Fourth Proportional to 426,851.51, 589,050.91 and 235,860.80

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Solution

The fourth proportional to 426,851.51, 589,050.91 and 235,860.80 is: 325,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,851.51 : 589,050.91 = 235,860.80 : x
  2. Step 2: Convert to fraction form
    426,851.51/589,050.91 = 235,860.80/x
  3. Step 3: Cross multiply
    426,851.51x = 589,050.91 × 235,860.80
  4. Step 4: Simplify right side
    426,851.51x = 138,934,018,873.33
  5. Step 5: Solve for x
    x = 138,934,018,873.33/426,851.51
  6. Step 6: Final answer
    x = 325,485.60

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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.