Home / 810,206.59-1,117,989.80-447,608.82

Finding the Fourth Proportional to 810,206.59, 1,117,989.80 and 447,608.82

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Solution

The fourth proportional to 810,206.59, 1,117,989.80 and 447,608.82 is: 617,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,206.59 : 1,117,989.80 = 447,608.82 : x
  2. Step 2: Convert to fraction form
    810,206.59/1,117,989.80 = 447,608.82/x
  3. Step 3: Cross multiply
    810,206.59x = 1,117,989.80 × 447,608.82
  4. Step 4: Simplify right side
    810,206.59x = 500,422,095,150.04
  5. Step 5: Solve for x
    x = 500,422,095,150.04/810,206.59
  6. Step 6: Final answer
    x = 617,647.53

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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.