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Finding the Fourth Proportional to 425,393.64, 587,055.57 and 234,419.34

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Solution

The fourth proportional to 425,393.64, 587,055.57 and 234,419.34 is: 323,505.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,393.64 : 587,055.57 = 234,419.34 : x
  2. Step 2: Convert to fraction form
    425,393.64/587,055.57 = 234,419.34/x
  3. Step 3: Cross multiply
    425,393.64x = 587,055.57 × 234,419.34
  4. Step 4: Simplify right side
    425,393.64x = 137,617,179,262.72
  5. Step 5: Solve for x
    x = 137,617,179,262.72/425,393.64
  6. Step 6: Final answer
    x = 323,505.49

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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.