Home / 1,405,388.93-1,939,437.32-760,809.11

Finding the Fourth Proportional to 1,405,388.93, 1,939,437.32 and 760,809.11

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Solution

The fourth proportional to 1,405,388.93, 1,939,437.32 and 760,809.11 is: 1,049,916.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,388.93 : 1,939,437.32 = 760,809.11 : x
  2. Step 2: Convert to fraction form
    1,405,388.93/1,939,437.32 = 760,809.11/x
  3. Step 3: Cross multiply
    1,405,388.93x = 1,939,437.32 × 760,809.11
  4. Step 4: Simplify right side
    1,405,388.93x = 1,475,541,567,828.75
  5. Step 5: Solve for x
    x = 1,475,541,567,828.75/1,405,388.93
  6. Step 6: Final answer
    x = 1,049,916.89

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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.