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Finding the Fourth Proportional to 340,298.98, 469,604.31 and 187,335.93

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Solution

The fourth proportional to 340,298.98, 469,604.31 and 187,335.93 is: 258,519.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,298.98 : 469,604.31 = 187,335.93 : x
  2. Step 2: Convert to fraction form
    340,298.98/469,604.31 = 187,335.93/x
  3. Step 3: Cross multiply
    340,298.98x = 469,604.31 × 187,335.93
  4. Step 4: Simplify right side
    340,298.98x = 87,973,760,145.86
  5. Step 5: Solve for x
    x = 87,973,760,145.86/340,298.98
  6. Step 6: Final answer
    x = 258,519.02

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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.