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Finding the Fourth Proportional to 5,333,381.54, 7,998,005.19 and 1,920,939.74

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Solution

The fourth proportional to 5,333,381.54, 7,998,005.19 and 1,920,939.74 is: 2,880,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,333,381.54 : 7,998,005.19 = 1,920,939.74 : x
  2. Step 2: Convert to fraction form
    5,333,381.54/7,998,005.19 = 1,920,939.74/x
  3. Step 3: Cross multiply
    5,333,381.54x = 7,998,005.19 × 1,920,939.74
  4. Step 4: Simplify right side
    5,333,381.54x = 15,363,686,010,197.25
  5. Step 5: Solve for x
    x = 15,363,686,010,197.25/5,333,381.54
  6. Step 6: Final answer
    x = 2,880,665.09

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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.