Home / 413,339.50-619,431.63-223,390.36

Finding the Fourth Proportional to 413,339.50, 619,431.63 and 223,390.36

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Solution

The fourth proportional to 413,339.50, 619,431.63 and 223,390.36 is: 334,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,339.50 : 619,431.63 = 223,390.36 : x
  2. Step 2: Convert to fraction form
    413,339.50/619,431.63 = 223,390.36/x
  3. Step 3: Cross multiply
    413,339.50x = 619,431.63 × 223,390.36
  4. Step 4: Simplify right side
    413,339.50x = 138,375,054,821.09
  5. Step 5: Solve for x
    x = 138,375,054,821.09/413,339.50
  6. Step 6: Final answer
    x = 334,773.36

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1.5x scale

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.