Home / 440,828.16-607,779.70-285,505.03

Finding the Fourth Proportional to 440,828.16, 607,779.70 and 285,505.03

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Solution

The fourth proportional to 440,828.16, 607,779.70 and 285,505.03 is: 393,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,828.16 : 607,779.70 = 285,505.03 : x
  2. Step 2: Convert to fraction form
    440,828.16/607,779.70 = 285,505.03/x
  3. Step 3: Cross multiply
    440,828.16x = 607,779.70 × 285,505.03
  4. Step 4: Simplify right side
    440,828.16x = 173,524,158,442.99
  5. Step 5: Solve for x
    x = 173,524,158,442.99/440,828.16
  6. Step 6: Final answer
    x = 393,632.20

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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.