Home / 668,100.24-1,000,815.12-401,714.88

Finding the Fourth Proportional to 668,100.24, 1,000,815.12 and 401,714.88

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Solution

The fourth proportional to 668,100.24, 1,000,815.12 and 401,714.88 is: 601,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,100.24 : 1,000,815.12 = 401,714.88 : x
  2. Step 2: Convert to fraction form
    668,100.24/1,000,815.12 = 401,714.88/x
  3. Step 3: Cross multiply
    668,100.24x = 1,000,815.12 × 401,714.88
  4. Step 4: Simplify right side
    668,100.24x = 402,042,325,832.99
  5. Step 5: Solve for x
    x = 402,042,325,832.99/668,100.24
  6. Step 6: Final answer
    x = 601,769.47

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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.