Home / 1,276,904.20-1,915,202.70-528,872.20

Finding the Fourth Proportional to 1,276,904.20, 1,915,202.70 and 528,872.20

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Solution

The fourth proportional to 1,276,904.20, 1,915,202.70 and 528,872.20 is: 793,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,904.20 : 1,915,202.70 = 528,872.20 : x
  2. Step 2: Convert to fraction form
    1,276,904.20/1,915,202.70 = 528,872.20/x
  3. Step 3: Cross multiply
    1,276,904.20x = 1,915,202.70 × 528,872.20
  4. Step 4: Simplify right side
    1,276,904.20x = 1,012,897,465,394.94
  5. Step 5: Solve for x
    x = 1,012,897,465,394.94/1,276,904.20
  6. Step 6: Final answer
    x = 793,244.68

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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.