Home / 1,289,808.96-1,779,923.53-716,836.83

Finding the Fourth Proportional to 1,289,808.96, 1,779,923.53 and 716,836.83

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Solution

The fourth proportional to 1,289,808.96, 1,779,923.53 and 716,836.83 is: 989,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,808.96 : 1,779,923.53 = 716,836.83 : x
  2. Step 2: Convert to fraction form
    1,289,808.96/1,779,923.53 = 716,836.83/x
  3. Step 3: Cross multiply
    1,289,808.96x = 1,779,923.53 × 716,836.83
  4. Step 4: Simplify right side
    1,289,808.96x = 1,275,914,740,887.61
  5. Step 5: Solve for x
    x = 1,275,914,740,887.61/1,289,808.96
  6. Step 6: Final answer
    x = 989,227.69

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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.