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Finding the Fourth Proportional to 424,858.82, 586,317.45 and 231,279.08

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Solution

The fourth proportional to 424,858.82, 586,317.45 and 231,279.08 is: 319,171.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,858.82 : 586,317.45 = 231,279.08 : x
  2. Step 2: Convert to fraction form
    424,858.82/586,317.45 = 231,279.08/x
  3. Step 3: Cross multiply
    424,858.82x = 586,317.45 × 231,279.08
  4. Step 4: Simplify right side
    424,858.82x = 135,602,957,492.36
  5. Step 5: Solve for x
    x = 135,602,957,492.36/424,858.82
  6. Step 6: Final answer
    x = 319,171.81

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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.