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Finding the Fourth Proportional to 423,479.70, 584,402.98 and 232,505.40

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Solution

The fourth proportional to 423,479.70, 584,402.98 and 232,505.40 is: 320,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,479.70 : 584,402.98 = 232,505.40 : x
  2. Step 2: Convert to fraction form
    423,479.70/584,402.98 = 232,505.40/x
  3. Step 3: Cross multiply
    423,479.70x = 584,402.98 × 232,505.40
  4. Step 4: Simplify right side
    423,479.70x = 135,876,848,626.09
  5. Step 5: Solve for x
    x = 135,876,848,626.09/423,479.70
  6. Step 6: Final answer
    x = 320,858.00

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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.