Home / 805,780.42-1,112,134.96-461,846.91

Finding the Fourth Proportional to 805,780.42, 1,112,134.96 and 461,846.91

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Solution

The fourth proportional to 805,780.42, 1,112,134.96 and 461,846.91 is: 637,439.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,780.42 : 1,112,134.96 = 461,846.91 : x
  2. Step 2: Convert to fraction form
    805,780.42/1,112,134.96 = 461,846.91/x
  3. Step 3: Cross multiply
    805,780.42x = 1,112,134.96 × 461,846.91
  4. Step 4: Simplify right side
    805,780.42x = 513,636,099,526.79
  5. Step 5: Solve for x
    x = 513,636,099,526.79/805,780.42
  6. Step 6: Final answer
    x = 637,439.29

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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.