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Finding the Fourth Proportional to 430,657.25, 594,301.20 and 239,670.59

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Solution

The fourth proportional to 430,657.25, 594,301.20 and 239,670.59 is: 330,742.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,657.25 : 594,301.20 = 239,670.59 : x
  2. Step 2: Convert to fraction form
    430,657.25/594,301.20 = 239,670.59/x
  3. Step 3: Cross multiply
    430,657.25x = 594,301.20 × 239,670.59
  4. Step 4: Simplify right side
    430,657.25x = 142,436,516,270.20
  5. Step 5: Solve for x
    x = 142,436,516,270.20/430,657.25
  6. Step 6: Final answer
    x = 330,742.18

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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.