Home / 786,632.68-1,085,550.78-447,166.36

Finding the Fourth Proportional to 786,632.68, 1,085,550.78 and 447,166.36

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Solution

The fourth proportional to 786,632.68, 1,085,550.78 and 447,166.36 is: 617,088.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,632.68 : 1,085,550.78 = 447,166.36 : x
  2. Step 2: Convert to fraction form
    786,632.68/1,085,550.78 = 447,166.36/x
  3. Step 3: Cross multiply
    786,632.68x = 1,085,550.78 × 447,166.36
  4. Step 4: Simplify right side
    786,632.68x = 485,421,790,887.76
  5. Step 5: Solve for x
    x = 485,421,790,887.76/786,632.68
  6. Step 6: Final answer
    x = 617,088.26

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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.