Home / 771,544.32-1,064,485.11-499,820.49

Finding the Fourth Proportional to 771,544.32, 1,064,485.11 and 499,820.49

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Solution

The fourth proportional to 771,544.32, 1,064,485.11 and 499,820.49 is: 689,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,544.32 : 1,064,485.11 = 499,820.49 : x
  2. Step 2: Convert to fraction form
    771,544.32/1,064,485.11 = 499,820.49/x
  3. Step 3: Cross multiply
    771,544.32x = 1,064,485.11 × 499,820.49
  4. Step 4: Simplify right side
    771,544.32x = 532,051,469,277.90
  5. Step 5: Solve for x
    x = 532,051,469,277.90/771,544.32
  6. Step 6: Final answer
    x = 689,592.88

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Double scale
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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.