Home / 827,363.85-1,242,212.18-512,435.85

Finding the Fourth Proportional to 827,363.85, 1,242,212.18 and 512,435.85

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Solution

The fourth proportional to 827,363.85, 1,242,212.18 and 512,435.85 is: 769,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,363.85 : 1,242,212.18 = 512,435.85 : x
  2. Step 2: Convert to fraction form
    827,363.85/1,242,212.18 = 512,435.85/x
  3. Step 3: Cross multiply
    827,363.85x = 1,242,212.18 × 512,435.85
  4. Step 4: Simplify right side
    827,363.85x = 636,554,051,776.47
  5. Step 5: Solve for x
    x = 636,554,051,776.47/827,363.85
  6. Step 6: Final answer
    x = 769,376.20

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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.