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Finding the Fourth Proportional to 430,675.80, 594,326.68 and 239,689.16

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Solution

The fourth proportional to 430,675.80, 594,326.68 and 239,689.16 is: 330,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,675.80 : 594,326.68 = 239,689.16 : x
  2. Step 2: Convert to fraction form
    430,675.80/594,326.68 = 239,689.16/x
  3. Step 3: Cross multiply
    430,675.80x = 594,326.68 × 239,689.16
  4. Step 4: Simplify right side
    430,675.80x = 142,453,662,694.79
  5. Step 5: Solve for x
    x = 142,453,662,694.79/430,675.80
  6. Step 6: Final answer
    x = 330,767.74

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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.