Home / 886,826.20-1,330,239.30-354,429.40

Finding the Fourth Proportional to 886,826.20, 1,330,239.30 and 354,429.40

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Solution

The fourth proportional to 886,826.20, 1,330,239.30 and 354,429.40 is: 531,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,826.20 : 1,330,239.30 = 354,429.40 : x
  2. Step 2: Convert to fraction form
    886,826.20/1,330,239.30 = 354,429.40/x
  3. Step 3: Cross multiply
    886,826.20x = 1,330,239.30 × 354,429.40
  4. Step 4: Simplify right side
    886,826.20x = 471,475,916,955.42
  5. Step 5: Solve for x
    x = 471,475,916,955.42/886,826.20
  6. Step 6: Final answer
    x = 531,644.10

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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.