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Finding the Fourth Proportional to 607,434.70, 911,261.40 and 252,484.60

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Solution

The fourth proportional to 607,434.70, 911,261.40 and 252,484.60 is: 378,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,434.70 : 911,261.40 = 252,484.60 : x
  2. Step 2: Convert to fraction form
    607,434.70/911,261.40 = 252,484.60/x
  3. Step 3: Cross multiply
    607,434.70x = 911,261.40 × 252,484.60
  4. Step 4: Simplify right side
    607,434.70x = 230,079,470,074.44
  5. Step 5: Solve for x
    x = 230,079,470,074.44/607,434.70
  6. Step 6: Final answer
    x = 378,772.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.