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Finding the Fourth Proportional to 350,045.20, 524,290.20 and 303,389.20

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Solution

The fourth proportional to 350,045.20, 524,290.20 and 303,389.20 is: 454,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,045.20 : 524,290.20 = 303,389.20 : x
  2. Step 2: Convert to fraction form
    350,045.20/524,290.20 = 303,389.20/x
  3. Step 3: Cross multiply
    350,045.20x = 524,290.20 × 303,389.20
  4. Step 4: Simplify right side
    350,045.20x = 159,063,984,345.84
  5. Step 5: Solve for x
    x = 159,063,984,345.84/350,045.20
  6. Step 6: Final answer
    x = 454,409.84

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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.