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Finding the Fourth Proportional to 439,168.80, 606,055.08 and 237,964.80

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Solution

The fourth proportional to 439,168.80, 606,055.08 and 237,964.80 is: 328,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,168.80 : 606,055.08 = 237,964.80 : x
  2. Step 2: Convert to fraction form
    439,168.80/606,055.08 = 237,964.80/x
  3. Step 3: Cross multiply
    439,168.80x = 606,055.08 × 237,964.80
  4. Step 4: Simplify right side
    439,168.80x = 144,219,775,901.18
  5. Step 5: Solve for x
    x = 144,219,775,901.18/439,168.80
  6. Step 6: Final answer
    x = 328,392.58

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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.