Home / 913,622.47-1,260,783.74-505,715.56

Finding the Fourth Proportional to 913,622.47, 1,260,783.74 and 505,715.56

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Solution

The fourth proportional to 913,622.47, 1,260,783.74 and 505,715.56 is: 697,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,622.47 : 1,260,783.74 = 505,715.56 : x
  2. Step 2: Convert to fraction form
    913,622.47/1,260,783.74 = 505,715.56/x
  3. Step 3: Cross multiply
    913,622.47x = 1,260,783.74 × 505,715.56
  4. Step 4: Simplify right side
    913,622.47x = 637,597,954,822.94
  5. Step 5: Solve for x
    x = 637,597,954,822.94/913,622.47
  6. Step 6: Final answer
    x = 697,879.02

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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.