Home / 689,714.60-1,034,604.30-216,415.40

Finding the Fourth Proportional to 689,714.60, 1,034,604.30 and 216,415.40

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Solution

The fourth proportional to 689,714.60, 1,034,604.30 and 216,415.40 is: 324,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,714.60 : 1,034,604.30 = 216,415.40 : x
  2. Step 2: Convert to fraction form
    689,714.60/1,034,604.30 = 216,415.40/x
  3. Step 3: Cross multiply
    689,714.60x = 1,034,604.30 × 216,415.40
  4. Step 4: Simplify right side
    689,714.60x = 223,904,303,426.22
  5. Step 5: Solve for x
    x = 223,904,303,426.22/689,714.60
  6. Step 6: Final answer
    x = 324,633.27

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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.