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Finding the Fourth Proportional to 433,312.80, 650,353.20 and 255,597.60

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Solution

The fourth proportional to 433,312.80, 650,353.20 and 255,597.60 is: 383,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,312.80 : 650,353.20 = 255,597.60 : x
  2. Step 2: Convert to fraction form
    433,312.80/650,353.20 = 255,597.60/x
  3. Step 3: Cross multiply
    433,312.80x = 650,353.20 × 255,597.60
  4. Step 4: Simplify right side
    433,312.80x = 166,228,717,072.32
  5. Step 5: Solve for x
    x = 166,228,717,072.32/433,312.80
  6. Step 6: Final answer
    x = 383,622.91

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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.