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Finding the Fourth Proportional to 964,300.64, 1,330,611.84 and 534,576.80

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Solution

The fourth proportional to 964,300.64, 1,330,611.84 and 534,576.80 is: 737,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,300.64 : 1,330,611.84 = 534,576.80 : x
  2. Step 2: Convert to fraction form
    964,300.64/1,330,611.84 = 534,576.80/x
  3. Step 3: Cross multiply
    964,300.64x = 1,330,611.84 × 534,576.80
  4. Step 4: Simplify right side
    964,300.64x = 711,314,219,469.31
  5. Step 5: Solve for x
    x = 711,314,219,469.31/964,300.64
  6. Step 6: Final answer
    x = 737,647.77

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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.