Home / 816,911.43-1,127,352.23-454,335.41

Finding the Fourth Proportional to 816,911.43, 1,127,352.23 and 454,335.41

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Solution

The fourth proportional to 816,911.43, 1,127,352.23 and 454,335.41 is: 626,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,911.43 : 1,127,352.23 = 454,335.41 : x
  2. Step 2: Convert to fraction form
    816,911.43/1,127,352.23 = 454,335.41/x
  3. Step 3: Cross multiply
    816,911.43x = 1,127,352.23 × 454,335.41
  4. Step 4: Simplify right side
    816,911.43x = 512,196,039,881.93
  5. Step 5: Solve for x
    x = 512,196,039,881.93/816,911.43
  6. Step 6: Final answer
    x = 626,990.91

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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.