Home / 873,328.12-1,205,184.30-486,137.40

Finding the Fourth Proportional to 873,328.12, 1,205,184.30 and 486,137.40

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Solution

The fourth proportional to 873,328.12, 1,205,184.30 and 486,137.40 is: 670,864.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,328.12 : 1,205,184.30 = 486,137.40 : x
  2. Step 2: Convert to fraction form
    873,328.12/1,205,184.30 = 486,137.40/x
  3. Step 3: Cross multiply
    873,328.12x = 1,205,184.30 × 486,137.40
  4. Step 4: Simplify right side
    873,328.12x = 585,885,162,122.82
  5. Step 5: Solve for x
    x = 585,885,162,122.82/873,328.12
  6. Step 6: Final answer
    x = 670,864.88

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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.