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Finding the Fourth Proportional to 410,726.80, 615,427.80 and 232,704.40

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Solution

The fourth proportional to 410,726.80, 615,427.80 and 232,704.40 is: 348,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,726.80 : 615,427.80 = 232,704.40 : x
  2. Step 2: Convert to fraction form
    410,726.80/615,427.80 = 232,704.40/x
  3. Step 3: Cross multiply
    410,726.80x = 615,427.80 × 232,704.40
  4. Step 4: Simplify right side
    410,726.80x = 143,212,756,942.32
  5. Step 5: Solve for x
    x = 143,212,756,942.32/410,726.80
  6. Step 6: Final answer
    x = 348,681.31

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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.