Home / 386,230.60-579,734.70-186,711.40

Finding the Fourth Proportional to 386,230.60, 579,734.70 and 186,711.40

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Solution

The fourth proportional to 386,230.60, 579,734.70 and 186,711.40 is: 280,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,230.60 : 579,734.70 = 186,711.40 : x
  2. Step 2: Convert to fraction form
    386,230.60/579,734.70 = 186,711.40/x
  3. Step 3: Cross multiply
    386,230.60x = 579,734.70 × 186,711.40
  4. Step 4: Simplify right side
    386,230.60x = 108,243,077,465.58
  5. Step 5: Solve for x
    x = 108,243,077,465.58/386,230.60
  6. Step 6: Final answer
    x = 280,255.05

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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.