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Finding the Fourth Proportional to 430,678.80, 594,330.82 and 239,692.16

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Solution

The fourth proportional to 430,678.80, 594,330.82 and 239,692.16 is: 330,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,678.80 : 594,330.82 = 239,692.16 : x
  2. Step 2: Convert to fraction form
    430,678.80/594,330.82 = 239,692.16/x
  3. Step 3: Cross multiply
    430,678.80x = 594,330.82 × 239,692.16
  4. Step 4: Simplify right side
    430,678.80x = 142,456,438,000.37
  5. Step 5: Solve for x
    x = 142,456,438,000.37/430,678.80
  6. Step 6: Final answer
    x = 330,771.88

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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.