Home / 770,836.80-1,063,801.44-431,297.76

Finding the Fourth Proportional to 770,836.80, 1,063,801.44 and 431,297.76

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Solution

The fourth proportional to 770,836.80, 1,063,801.44 and 431,297.76 is: 595,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,836.80 : 1,063,801.44 = 431,297.76 : x
  2. Step 2: Convert to fraction form
    770,836.80/1,063,801.44 = 431,297.76/x
  3. Step 3: Cross multiply
    770,836.80x = 1,063,801.44 × 431,297.76
  4. Step 4: Simplify right side
    770,836.80x = 458,815,178,156.77
  5. Step 5: Solve for x
    x = 458,815,178,156.77/770,836.80
  6. Step 6: Final answer
    x = 595,217.01

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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.