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Finding the Fourth Proportional to 426,908.88, 589,157.04 and 245,648.40

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Solution

The fourth proportional to 426,908.88, 589,157.04 and 245,648.40 is: 339,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,908.88 : 589,157.04 = 245,648.40 : x
  2. Step 2: Convert to fraction form
    426,908.88/589,157.04 = 245,648.40/x
  3. Step 3: Cross multiply
    426,908.88x = 589,157.04 × 245,648.40
  4. Step 4: Simplify right side
    426,908.88x = 144,725,484,224.74
  5. Step 5: Solve for x
    x = 144,725,484,224.74/426,908.88
  6. Step 6: Final answer
    x = 339,007.90

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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.