Home / 438,214.56-657,593.96-280,556.16

Finding the Fourth Proportional to 438,214.56, 657,593.96 and 280,556.16

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Solution

The fourth proportional to 438,214.56, 657,593.96 and 280,556.16 is: 421,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,214.56 : 657,593.96 = 280,556.16 : x
  2. Step 2: Convert to fraction form
    438,214.56/657,593.96 = 280,556.16/x
  3. Step 3: Cross multiply
    438,214.56x = 657,593.96 × 280,556.16
  4. Step 4: Simplify right side
    438,214.56x = 184,492,036,256.79
  5. Step 5: Solve for x
    x = 184,492,036,256.79/438,214.56
  6. Step 6: Final answer
    x = 421,008.46

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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.