Home / 439,109.76-605,971.35-237,905.76

Finding the Fourth Proportional to 439,109.76, 605,971.35 and 237,905.76

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Solution

The fourth proportional to 439,109.76, 605,971.35 and 237,905.76 is: 328,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,109.76 : 605,971.35 = 237,905.76 : x
  2. Step 2: Convert to fraction form
    439,109.76/605,971.35 = 237,905.76/x
  3. Step 3: Cross multiply
    439,109.76x = 605,971.35 × 237,905.76
  4. Step 4: Simplify right side
    439,109.76x = 144,164,074,559.98
  5. Step 5: Solve for x
    x = 144,164,074,559.98/439,109.76
  6. Step 6: Final answer
    x = 328,309.88

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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.