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Finding the Fourth Proportional to 316,953.56, 437,331.28 and 187,835.13

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Solution

The fourth proportional to 316,953.56, 437,331.28 and 187,835.13 is: 259,174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,953.56 : 437,331.28 = 187,835.13 : x
  2. Step 2: Convert to fraction form
    316,953.56/437,331.28 = 187,835.13/x
  3. Step 3: Cross multiply
    316,953.56x = 437,331.28 × 187,835.13
  4. Step 4: Simplify right side
    316,953.56x = 82,146,175,956.19
  5. Step 5: Solve for x
    x = 82,146,175,956.19/316,953.56
  6. Step 6: Final answer
    x = 259,174.17

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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.