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Finding the Fourth Proportional to 340,294.98, 469,598.79 and 187,331.93

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Solution

The fourth proportional to 340,294.98, 469,598.79 and 187,331.93 is: 258,513.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,294.98 : 469,598.79 = 187,331.93 : x
  2. Step 2: Convert to fraction form
    340,294.98/469,598.79 = 187,331.93/x
  3. Step 3: Cross multiply
    340,294.98x = 469,598.79 × 187,331.93
  4. Step 4: Simplify right side
    340,294.98x = 87,970,846,584.62
  5. Step 5: Solve for x
    x = 87,970,846,584.62/340,294.98
  6. Step 6: Final answer
    x = 258,513.50

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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.