Home / 338,460.12-507,686.25-82,294.17

Finding the Fourth Proportional to 338,460.12, 507,686.25 and 82,294.17

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Solution

The fourth proportional to 338,460.12, 507,686.25 and 82,294.17 is: 123,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,460.12 : 507,686.25 = 82,294.17 : x
  2. Step 2: Convert to fraction form
    338,460.12/507,686.25 = 82,294.17/x
  3. Step 3: Cross multiply
    338,460.12x = 507,686.25 × 82,294.17
  4. Step 4: Simplify right side
    338,460.12x = 41,779,618,564.16
  5. Step 5: Solve for x
    x = 41,779,618,564.16/338,460.12
  6. Step 6: Final answer
    x = 123,440.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.