Home / 1,405,926.90-1,940,180.16-761,347.80

Finding the Fourth Proportional to 1,405,926.90, 1,940,180.16 and 761,347.80

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Solution

The fourth proportional to 1,405,926.90, 1,940,180.16 and 761,347.80 is: 1,050,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,926.90 : 1,940,180.16 = 761,347.80 : x
  2. Step 2: Convert to fraction form
    1,405,926.90/1,940,180.16 = 761,347.80/x
  3. Step 3: Cross multiply
    1,405,926.90x = 1,940,180.16 × 761,347.80
  4. Step 4: Simplify right side
    1,405,926.90x = 1,477,151,896,419.65
  5. Step 5: Solve for x
    x = 1,477,151,896,419.65/1,405,926.90
  6. Step 6: Final answer
    x = 1,050,660.53

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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.