Home / 827,153.40-1,240,730.10-266,187.90

Finding the Fourth Proportional to 827,153.40, 1,240,730.10 and 266,187.90

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Solution

The fourth proportional to 827,153.40, 1,240,730.10 and 266,187.90 is: 399,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,153.40 : 1,240,730.10 = 266,187.90 : x
  2. Step 2: Convert to fraction form
    827,153.40/1,240,730.10 = 266,187.90/x
  3. Step 3: Cross multiply
    827,153.40x = 1,240,730.10 × 266,187.90
  4. Step 4: Simplify right side
    827,153.40x = 330,267,339,785.79
  5. Step 5: Solve for x
    x = 330,267,339,785.79/827,153.40
  6. Step 6: Final answer
    x = 399,281.85

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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.