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Finding the Fourth Proportional to 1,917,046.90, 2,875,978.59 and 569,213.38

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Solution

The fourth proportional to 1,917,046.90, 2,875,978.59 and 569,213.38 is: 853,941.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,046.90 : 2,875,978.59 = 569,213.38 : x
  2. Step 2: Convert to fraction form
    1,917,046.90/2,875,978.59 = 569,213.38/x
  3. Step 3: Cross multiply
    1,917,046.90x = 2,875,978.59 × 569,213.38
  4. Step 4: Simplify right side
    1,917,046.90x = 1,637,045,494,021.53
  5. Step 5: Solve for x
    x = 1,637,045,494,021.53/1,917,046.90
  6. Step 6: Final answer
    x = 853,941.29

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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.