Home / 1,192,069.60-1,645,047.12-648,205.76

Finding the Fourth Proportional to 1,192,069.60, 1,645,047.12 and 648,205.76

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Solution

The fourth proportional to 1,192,069.60, 1,645,047.12 and 648,205.76 is: 894,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,069.60 : 1,645,047.12 = 648,205.76 : x
  2. Step 2: Convert to fraction form
    1,192,069.60/1,645,047.12 = 648,205.76/x
  3. Step 3: Cross multiply
    1,192,069.60x = 1,645,047.12 × 648,205.76
  4. Step 4: Simplify right side
    1,192,069.60x = 1,066,329,018,655.41
  5. Step 5: Solve for x
    x = 1,066,329,018,655.41/1,192,069.60
  6. Step 6: Final answer
    x = 894,519.09

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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.