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Finding the Fourth Proportional to 350,547.20, 525,820.80 and 329,811.20

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Solution

The fourth proportional to 350,547.20, 525,820.80 and 329,811.20 is: 494,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,547.20 : 525,820.80 = 329,811.20 : x
  2. Step 2: Convert to fraction form
    350,547.20/525,820.80 = 329,811.20/x
  3. Step 3: Cross multiply
    350,547.20x = 525,820.80 × 329,811.20
  4. Step 4: Simplify right side
    350,547.20x = 173,421,589,032.96
  5. Step 5: Solve for x
    x = 173,421,589,032.96/350,547.20
  6. Step 6: Final answer
    x = 494,716.80

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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.