Home / 1,405,858.63-1,940,094.13-761,278.85

Finding the Fourth Proportional to 1,405,858.63, 1,940,094.13 and 761,278.85

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Solution

The fourth proportional to 1,405,858.63, 1,940,094.13 and 761,278.85 is: 1,050,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,858.63 : 1,940,094.13 = 761,278.85 : x
  2. Step 2: Convert to fraction form
    1,405,858.63/1,940,094.13 = 761,278.85/x
  3. Step 3: Cross multiply
    1,405,858.63x = 1,940,094.13 × 761,278.85
  4. Step 4: Simplify right side
    1,405,858.63x = 1,476,952,631,125.19
  5. Step 5: Solve for x
    x = 1,476,952,631,125.19/1,405,858.63
  6. Step 6: Final answer
    x = 1,050,569.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.