Home / 1,221,210.54-1,685,270.88-677,327.94

Finding the Fourth Proportional to 1,221,210.54, 1,685,270.88 and 677,327.94

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Solution

The fourth proportional to 1,221,210.54, 1,685,270.88 and 677,327.94 is: 934,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,210.54 : 1,685,270.88 = 677,327.94 : x
  2. Step 2: Convert to fraction form
    1,221,210.54/1,685,270.88 = 677,327.94/x
  3. Step 3: Cross multiply
    1,221,210.54x = 1,685,270.88 × 677,327.94
  4. Step 4: Simplify right side
    1,221,210.54x = 1,141,481,053,492.39
  5. Step 5: Solve for x
    x = 1,141,481,053,492.39/1,221,210.54
  6. Step 6: Final answer
    x = 934,712.74

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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.