Home / 816,863.91-1,127,300.94-454,303.05

Finding the Fourth Proportional to 816,863.91, 1,127,300.94 and 454,303.05

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Solution

The fourth proportional to 816,863.91, 1,127,300.94 and 454,303.05 is: 626,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,863.91 : 1,127,300.94 = 454,303.05 : x
  2. Step 2: Convert to fraction form
    816,863.91/1,127,300.94 = 454,303.05/x
  3. Step 3: Cross multiply
    816,863.91x = 1,127,300.94 × 454,303.05
  4. Step 4: Simplify right side
    816,863.91x = 512,136,255,309.87
  5. Step 5: Solve for x
    x = 512,136,255,309.87/816,863.91
  6. Step 6: Final answer
    x = 626,954.20

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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.