Home / 885,309.40-1,326,380.10-538,461.40

Finding the Fourth Proportional to 885,309.40, 1,326,380.10 and 538,461.40

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Solution

The fourth proportional to 885,309.40, 1,326,380.10 and 538,461.40 is: 806,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,309.40 : 1,326,380.10 = 538,461.40 : x
  2. Step 2: Convert to fraction form
    885,309.40/1,326,380.10 = 538,461.40/x
  3. Step 3: Cross multiply
    885,309.40x = 1,326,380.10 × 538,461.40
  4. Step 4: Simplify right side
    885,309.40x = 714,204,485,578.14
  5. Step 5: Solve for x
    x = 714,204,485,578.14/885,309.40
  6. Step 6: Final answer
    x = 806,728.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.