Home / 1,221,330.73-1,685,638.16-677,641.45

Finding the Fourth Proportional to 1,221,330.73, 1,685,638.16 and 677,641.45

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Solution

The fourth proportional to 1,221,330.73, 1,685,638.16 and 677,641.45 is: 935,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,330.73 : 1,685,638.16 = 677,641.45 : x
  2. Step 2: Convert to fraction form
    1,221,330.73/1,685,638.16 = 677,641.45/x
  3. Step 3: Cross multiply
    1,221,330.73x = 1,685,638.16 × 677,641.45
  4. Step 4: Simplify right side
    1,221,330.73x = 1,142,258,283,529.52
  5. Step 5: Solve for x
    x = 1,142,258,283,529.52/1,221,330.73
  6. Step 6: Final answer
    x = 935,257.14

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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.