Home / 438,918.30-605,707.25-237,714.30

Finding the Fourth Proportional to 438,918.30, 605,707.25 and 237,714.30

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Solution

The fourth proportional to 438,918.30, 605,707.25 and 237,714.30 is: 328,045.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,918.30 : 605,707.25 = 237,714.30 : x
  2. Step 2: Convert to fraction form
    438,918.30/605,707.25 = 237,714.30/x
  3. Step 3: Cross multiply
    438,918.30x = 605,707.25 × 237,714.30
  4. Step 4: Simplify right side
    438,918.30x = 143,985,273,750.10
  5. Step 5: Solve for x
    x = 143,985,273,750.10/438,918.30
  6. Step 6: Final answer
    x = 328,045.73

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1.5x scale

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.