Home / 1,405,923.90-1,940,176.02-761,344.80

Finding the Fourth Proportional to 1,405,923.90, 1,940,176.02 and 761,344.80

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Solution

The fourth proportional to 1,405,923.90, 1,940,176.02 and 761,344.80 is: 1,050,656.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,923.90 : 1,940,176.02 = 761,344.80 : x
  2. Step 2: Convert to fraction form
    1,405,923.90/1,940,176.02 = 761,344.80/x
  3. Step 3: Cross multiply
    1,405,923.90x = 1,940,176.02 × 761,344.80
  4. Step 4: Simplify right side
    1,405,923.90x = 1,477,142,923,911.70
  5. Step 5: Solve for x
    x = 1,477,142,923,911.70/1,405,923.90
  6. Step 6: Final answer
    x = 1,050,656.39

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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.