Home / 1,289,353.97-1,934,417.33-520,455.80

Finding the Fourth Proportional to 1,289,353.97, 1,934,417.33 and 520,455.80

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Solution

The fourth proportional to 1,289,353.97, 1,934,417.33 and 520,455.80 is: 780,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,353.97 : 1,934,417.33 = 520,455.80 : x
  2. Step 2: Convert to fraction form
    1,289,353.97/1,934,417.33 = 520,455.80/x
  3. Step 3: Cross multiply
    1,289,353.97x = 1,934,417.33 × 520,455.80
  4. Step 4: Simplify right side
    1,289,353.97x = 1,006,778,706,744.65
  5. Step 5: Solve for x
    x = 1,006,778,706,744.65/1,289,353.97
  6. Step 6: Final answer
    x = 780,839.66

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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.