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Finding the Fourth Proportional to 425,592.36, 587,358.88 and 317,975.56

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Solution

The fourth proportional to 425,592.36, 587,358.88 and 317,975.56 is: 438,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,592.36 : 587,358.88 = 317,975.56 : x
  2. Step 2: Convert to fraction form
    425,592.36/587,358.88 = 317,975.56/x
  3. Step 3: Cross multiply
    425,592.36x = 587,358.88 × 317,975.56
  4. Step 4: Simplify right side
    425,592.36x = 186,765,766,525.64
  5. Step 5: Solve for x
    x = 186,765,766,525.64/425,592.36
  6. Step 6: Final answer
    x = 438,837.22

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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.