Home / 826,859.45-1,138,426.55-705,513.76

Finding the Fourth Proportional to 826,859.45, 1,138,426.55 and 705,513.76

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Solution

The fourth proportional to 826,859.45, 1,138,426.55 and 705,513.76 is: 971,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,859.45 : 1,138,426.55 = 705,513.76 : x
  2. Step 2: Convert to fraction form
    826,859.45/1,138,426.55 = 705,513.76/x
  3. Step 3: Cross multiply
    826,859.45x = 1,138,426.55 × 705,513.76
  4. Step 4: Simplify right side
    826,859.45x = 803,175,593,647.28
  5. Step 5: Solve for x
    x = 803,175,593,647.28/826,859.45
  6. Step 6: Final answer
    x = 971,356.85

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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.