Home / 389,310.30-583,856.10-123,152.40

Finding the Fourth Proportional to 389,310.30, 583,856.10 and 123,152.40

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Solution

The fourth proportional to 389,310.30, 583,856.10 and 123,152.40 is: 184,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,310.30 : 583,856.10 = 123,152.40 : x
  2. Step 2: Convert to fraction form
    389,310.30/583,856.10 = 123,152.40/x
  3. Step 3: Cross multiply
    389,310.30x = 583,856.10 × 123,152.40
  4. Step 4: Simplify right side
    389,310.30x = 71,903,279,969.64
  5. Step 5: Solve for x
    x = 71,903,279,969.64/389,310.30
  6. Step 6: Final answer
    x = 184,694.01

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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.