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Finding the Fourth Proportional to 350,008.40, 525,271.80 and 231,640.40

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Solution

The fourth proportional to 350,008.40, 525,271.80 and 231,640.40 is: 347,632.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,008.40 : 525,271.80 = 231,640.40 : x
  2. Step 2: Convert to fraction form
    350,008.40/525,271.80 = 231,640.40/x
  3. Step 3: Cross multiply
    350,008.40x = 525,271.80 × 231,640.40
  4. Step 4: Simplify right side
    350,008.40x = 121,674,169,860.72
  5. Step 5: Solve for x
    x = 121,674,169,860.72/350,008.40
  6. Step 6: Final answer
    x = 347,632.14

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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.