Home / 913,623.47-1,260,785.12-505,716.56

Finding the Fourth Proportional to 913,623.47, 1,260,785.12 and 505,716.56

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Solution

The fourth proportional to 913,623.47, 1,260,785.12 and 505,716.56 is: 697,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,623.47 : 1,260,785.12 = 505,716.56 : x
  2. Step 2: Convert to fraction form
    913,623.47/1,260,785.12 = 505,716.56/x
  3. Step 3: Cross multiply
    913,623.47x = 1,260,785.12 × 505,716.56
  4. Step 4: Simplify right side
    913,623.47x = 637,599,913,785.59
  5. Step 5: Solve for x
    x = 637,599,913,785.59/913,623.47
  6. Step 6: Final answer
    x = 697,880.40

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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.