Home / 1,277,953.20-1,915,301.70-679,201.20

Finding the Fourth Proportional to 1,277,953.20, 1,915,301.70 and 679,201.20

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Solution

The fourth proportional to 1,277,953.20, 1,915,301.70 and 679,201.20 is: 1,017,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,953.20 : 1,915,301.70 = 679,201.20 : x
  2. Step 2: Convert to fraction form
    1,277,953.20/1,915,301.70 = 679,201.20/x
  3. Step 3: Cross multiply
    1,277,953.20x = 1,915,301.70 × 679,201.20
  4. Step 4: Simplify right side
    1,277,953.20x = 1,300,875,213,002.04
  5. Step 5: Solve for x
    x = 1,300,875,213,002.04/1,277,953.20
  6. Step 6: Final answer
    x = 1,017,936.50

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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.