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Finding the Fourth Proportional to 340,235.73, 469,521.63 and 187,270.62

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Solution

The fourth proportional to 340,235.73, 469,521.63 and 187,270.62 is: 258,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,235.73 : 469,521.63 = 187,270.62 : x
  2. Step 2: Convert to fraction form
    340,235.73/469,521.63 = 187,270.62/x
  3. Step 3: Cross multiply
    340,235.73x = 469,521.63 × 187,270.62
  4. Step 4: Simplify right side
    340,235.73x = 87,927,606,753.51
  5. Step 5: Solve for x
    x = 87,927,606,753.51/340,235.73
  6. Step 6: Final answer
    x = 258,431.43

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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.