Home / 1,405,612.68-1,939,736.61-761,030.88

Finding the Fourth Proportional to 1,405,612.68, 1,939,736.61 and 761,030.88

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Solution

The fourth proportional to 1,405,612.68, 1,939,736.61 and 761,030.88 is: 1,050,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,612.68 : 1,939,736.61 = 761,030.88 : x
  2. Step 2: Convert to fraction form
    1,405,612.68/1,939,736.61 = 761,030.88/x
  3. Step 3: Cross multiply
    1,405,612.68x = 1,939,736.61 × 761,030.88
  4. Step 4: Simplify right side
    1,405,612.68x = 1,476,199,459,276.52
  5. Step 5: Solve for x
    x = 1,476,199,459,276.52/1,405,612.68
  6. Step 6: Final answer
    x = 1,050,217.80

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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.