Home / 641,933.16-885,856.94-355,447.10

Finding the Fourth Proportional to 641,933.16, 885,856.94 and 355,447.10

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Solution

The fourth proportional to 641,933.16, 885,856.94 and 355,447.10 is: 490,511.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,933.16 : 885,856.94 = 355,447.10 : x
  2. Step 2: Convert to fraction form
    641,933.16/885,856.94 = 355,447.10/x
  3. Step 3: Cross multiply
    641,933.16x = 885,856.94 × 355,447.10
  4. Step 4: Simplify right side
    641,933.16x = 314,875,280,337.87
  5. Step 5: Solve for x
    x = 314,875,280,337.87/641,933.16
  6. Step 6: Final answer
    x = 490,511.01

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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.