Home / 985,568.11-1,478,364.01-386,811.25

Finding the Fourth Proportional to 985,568.11, 1,478,364.01 and 386,811.25

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Solution

The fourth proportional to 985,568.11, 1,478,364.01 and 386,811.25 is: 580,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,568.11 : 1,478,364.01 = 386,811.25 : x
  2. Step 2: Convert to fraction form
    985,568.11/1,478,364.01 = 386,811.25/x
  3. Step 3: Cross multiply
    985,568.11x = 1,478,364.01 × 386,811.25
  4. Step 4: Simplify right side
    985,568.11x = 571,847,826,000.18
  5. Step 5: Solve for x
    x = 571,847,826,000.18/985,568.11
  6. Step 6: Final answer
    x = 580,221.52

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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.