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Finding the Fourth Proportional to 1,114,978.89, 1,673,040.39 and 546,349.32

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Solution

The fourth proportional to 1,114,978.89, 1,673,040.39 and 546,349.32 is: 819,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,978.89 : 1,673,040.39 = 546,349.32 : x
  2. Step 2: Convert to fraction form
    1,114,978.89/1,673,040.39 = 546,349.32/x
  3. Step 3: Cross multiply
    1,114,978.89x = 1,673,040.39 × 546,349.32
  4. Step 4: Simplify right side
    1,114,978.89x = 914,064,479,409.04
  5. Step 5: Solve for x
    x = 914,064,479,409.04/1,114,978.89
  6. Step 6: Final answer
    x = 819,804.29

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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.