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Finding the Fourth Proportional to 463,779.51, 694,763.25 and 319,659.72

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Solution

The fourth proportional to 463,779.51, 694,763.25 and 319,659.72 is: 478,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,779.51 : 694,763.25 = 319,659.72 : x
  2. Step 2: Convert to fraction form
    463,779.51/694,763.25 = 319,659.72/x
  3. Step 3: Cross multiply
    463,779.51x = 694,763.25 × 319,659.72
  4. Step 4: Simplify right side
    463,779.51x = 222,087,825,961.29
  5. Step 5: Solve for x
    x = 222,087,825,961.29/463,779.51
  6. Step 6: Final answer
    x = 478,865.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.