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Finding the Fourth Proportional to 426,047.80, 587,918.64 and 235,061.16

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Solution

The fourth proportional to 426,047.80, 587,918.64 and 235,061.16 is: 324,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,047.80 : 587,918.64 = 235,061.16 : x
  2. Step 2: Convert to fraction form
    426,047.80/587,918.64 = 235,061.16/x
  3. Step 3: Cross multiply
    426,047.80x = 587,918.64 × 235,061.16
  4. Step 4: Simplify right side
    426,047.80x = 138,196,837,504.02
  5. Step 5: Solve for x
    x = 138,196,837,504.02/426,047.80
  6. Step 6: Final answer
    x = 324,369.33

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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.