Home / 886,862.20-1,330,293.30-354,465.40

Finding the Fourth Proportional to 886,862.20, 1,330,293.30 and 354,465.40

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Solution

The fourth proportional to 886,862.20, 1,330,293.30 and 354,465.40 is: 531,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,862.20 : 1,330,293.30 = 354,465.40 : x
  2. Step 2: Convert to fraction form
    886,862.20/1,330,293.30 = 354,465.40/x
  3. Step 3: Cross multiply
    886,862.20x = 1,330,293.30 × 354,465.40
  4. Step 4: Simplify right side
    886,862.20x = 471,542,946,701.82
  5. Step 5: Solve for x
    x = 471,542,946,701.82/886,862.20
  6. Step 6: Final answer
    x = 531,698.10

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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.