Home / 419,997.12-579,598.65-229,013.70

Finding the Fourth Proportional to 419,997.12, 579,598.65 and 229,013.70

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Solution

The fourth proportional to 419,997.12, 579,598.65 and 229,013.70 is: 316,040.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,997.12 : 579,598.65 = 229,013.70 : x
  2. Step 2: Convert to fraction form
    419,997.12/579,598.65 = 229,013.70/x
  3. Step 3: Cross multiply
    419,997.12x = 579,598.65 × 229,013.70
  4. Step 4: Simplify right side
    419,997.12x = 132,736,031,351.51
  5. Step 5: Solve for x
    x = 132,736,031,351.51/419,997.12
  6. Step 6: Final answer
    x = 316,040.34

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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.