Home / 985,433.40-1,478,150.10-386,195.40

Finding the Fourth Proportional to 985,433.40, 1,478,150.10 and 386,195.40

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Solution

The fourth proportional to 985,433.40, 1,478,150.10 and 386,195.40 is: 579,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,433.40 : 1,478,150.10 = 386,195.40 : x
  2. Step 2: Convert to fraction form
    985,433.40/1,478,150.10 = 386,195.40/x
  3. Step 3: Cross multiply
    985,433.40x = 1,478,150.10 × 386,195.40
  4. Step 4: Simplify right side
    985,433.40x = 570,854,769,129.54
  5. Step 5: Solve for x
    x = 570,854,769,129.54/985,433.40
  6. Step 6: Final answer
    x = 579,293.10

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Double scale
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Similar ratio
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1.5x scale

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.