Home / 816,872.45-1,127,197.69-454,237.74

Finding the Fourth Proportional to 816,872.45, 1,127,197.69 and 454,237.74

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Solution

The fourth proportional to 816,872.45, 1,127,197.69 and 454,237.74 is: 626,800.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,872.45 : 1,127,197.69 = 454,237.74 : x
  2. Step 2: Convert to fraction form
    816,872.45/1,127,197.69 = 454,237.74/x
  3. Step 3: Cross multiply
    816,872.45x = 1,127,197.69 × 454,237.74
  4. Step 4: Simplify right side
    816,872.45x = 512,015,730,103.23
  5. Step 5: Solve for x
    x = 512,015,730,103.23/816,872.45
  6. Step 6: Final answer
    x = 626,800.10

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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.