Home / 913,578.39-1,260,706.56-505,698.03

Finding the Fourth Proportional to 913,578.39, 1,260,706.56 and 505,698.03

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Solution

The fourth proportional to 913,578.39, 1,260,706.56 and 505,698.03 is: 697,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,578.39 : 1,260,706.56 = 505,698.03 : x
  2. Step 2: Convert to fraction form
    913,578.39/1,260,706.56 = 505,698.03/x
  3. Step 3: Cross multiply
    913,578.39x = 1,260,706.56 × 505,698.03
  4. Step 4: Simplify right side
    913,578.39x = 637,536,823,800.08
  5. Step 5: Solve for x
    x = 637,536,823,800.08/913,578.39
  6. Step 6: Final answer
    x = 697,845.78

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1.5x scale

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.