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Finding the Fourth Proportional to 425,394.64, 587,056.95 and 234,420.34

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Solution

The fourth proportional to 425,394.64, 587,056.95 and 234,420.34 is: 323,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,394.64 : 587,056.95 = 234,420.34 : x
  2. Step 2: Convert to fraction form
    425,394.64/587,056.95 = 234,420.34/x
  3. Step 3: Cross multiply
    425,394.64x = 587,056.95 × 234,420.34
  4. Step 4: Simplify right side
    425,394.64x = 137,618,089,818.36
  5. Step 5: Solve for x
    x = 137,618,089,818.36/425,394.64
  6. Step 6: Final answer
    x = 323,506.87

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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.