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Finding the Fourth Proportional to 616,019.20, 924,028.80 and 349,676.80

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Solution

The fourth proportional to 616,019.20, 924,028.80 and 349,676.80 is: 524,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,019.20 : 924,028.80 = 349,676.80 : x
  2. Step 2: Convert to fraction form
    616,019.20/924,028.80 = 349,676.80/x
  3. Step 3: Cross multiply
    616,019.20x = 924,028.80 × 349,676.80
  4. Step 4: Simplify right side
    616,019.20x = 323,111,433,891.84
  5. Step 5: Solve for x
    x = 323,111,433,891.84/616,019.20
  6. Step 6: Final answer
    x = 524,515.20

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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.