Home / 771,674.64-1,064,556.48-499,833.24

Finding the Fourth Proportional to 771,674.64, 1,064,556.48 and 499,833.24

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Solution

The fourth proportional to 771,674.64, 1,064,556.48 and 499,833.24 is: 689,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,674.64 : 1,064,556.48 = 499,833.24 : x
  2. Step 2: Convert to fraction form
    771,674.64/1,064,556.48 = 499,833.24/x
  3. Step 3: Cross multiply
    771,674.64x = 1,064,556.48 × 499,833.24
  4. Step 4: Simplify right side
    771,674.64x = 532,100,714,561.40
  5. Step 5: Solve for x
    x = 532,100,714,561.40/771,674.64
  6. Step 6: Final answer
    x = 689,540.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.