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Finding the Fourth Proportional to 426,872.40, 589,129.56 and 245,592.24

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Solution

The fourth proportional to 426,872.40, 589,129.56 and 245,592.24 is: 338,943.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,872.40 : 589,129.56 = 245,592.24 : x
  2. Step 2: Convert to fraction form
    426,872.40/589,129.56 = 245,592.24/x
  3. Step 3: Cross multiply
    426,872.40x = 589,129.56 × 245,592.24
  4. Step 4: Simplify right side
    426,872.40x = 144,685,648,290.61
  5. Step 5: Solve for x
    x = 144,685,648,290.61/426,872.40
  6. Step 6: Final answer
    x = 338,943.55

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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.