Home / 638,902.10-881,968.29-412,657.94

Finding the Fourth Proportional to 638,902.10, 881,968.29 and 412,657.94

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Solution

The fourth proportional to 638,902.10, 881,968.29 and 412,657.94 is: 569,651.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,902.10 : 881,968.29 = 412,657.94 : x
  2. Step 2: Convert to fraction form
    638,902.10/881,968.29 = 412,657.94/x
  3. Step 3: Cross multiply
    638,902.10x = 881,968.29 × 412,657.94
  4. Step 4: Simplify right side
    638,902.10x = 363,951,217,696.72
  5. Step 5: Solve for x
    x = 363,951,217,696.72/638,902.10
  6. Step 6: Final answer
    x = 569,651.00

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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.