Home / 1,265,411.70-1,898,117.55-412,481.70

Finding the Fourth Proportional to 1,265,411.70, 1,898,117.55 and 412,481.70

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Solution

The fourth proportional to 1,265,411.70, 1,898,117.55 and 412,481.70 is: 618,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,411.70 : 1,898,117.55 = 412,481.70 : x
  2. Step 2: Convert to fraction form
    1,265,411.70/1,898,117.55 = 412,481.70/x
  3. Step 3: Cross multiply
    1,265,411.70x = 1,898,117.55 × 412,481.70
  4. Step 4: Simplify right side
    1,265,411.70x = 782,938,753,823.84
  5. Step 5: Solve for x
    x = 782,938,753,823.84/1,265,411.70
  6. Step 6: Final answer
    x = 618,722.55

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1.5x scale

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.