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Finding the Fourth Proportional to 430,678.46, 594,335.67 and 239,687.30

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Solution

The fourth proportional to 430,678.46, 594,335.67 and 239,687.30 is: 330,768.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,678.46 : 594,335.67 = 239,687.30 : x
  2. Step 2: Convert to fraction form
    430,678.46/594,335.67 = 239,687.30/x
  3. Step 3: Cross multiply
    430,678.46x = 594,335.67 × 239,687.30
  4. Step 4: Simplify right side
    430,678.46x = 142,454,712,035.99
  5. Step 5: Solve for x
    x = 142,454,712,035.99/430,678.46
  6. Step 6: Final answer
    x = 330,768.14

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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.