Home / 440,828.29-607,779.87-285,505.16

Finding the Fourth Proportional to 440,828.29, 607,779.87 and 285,505.16

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Solution

The fourth proportional to 440,828.29, 607,779.87 and 285,505.16 is: 393,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,828.29 : 607,779.87 = 285,505.16 : x
  2. Step 2: Convert to fraction form
    440,828.29/607,779.87 = 285,505.16/x
  3. Step 3: Cross multiply
    440,828.29x = 607,779.87 × 285,505.16
  4. Step 4: Simplify right side
    440,828.29x = 173,524,284,919.59
  5. Step 5: Solve for x
    x = 173,524,284,919.59/440,828.29
  6. Step 6: Final answer
    x = 393,632.37

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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.