Home / 1,085,415.69-1,628,201.91-286,686.84

Finding the Fourth Proportional to 1,085,415.69, 1,628,201.91 and 286,686.84

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Solution

The fourth proportional to 1,085,415.69, 1,628,201.91 and 286,686.84 is: 430,050.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,415.69 : 1,628,201.91 = 286,686.84 : x
  2. Step 2: Convert to fraction form
    1,085,415.69/1,628,201.91 = 286,686.84/x
  3. Step 3: Cross multiply
    1,085,415.69x = 1,628,201.91 × 286,686.84
  4. Step 4: Simplify right side
    1,085,415.69x = 466,784,066,028.08
  5. Step 5: Solve for x
    x = 466,784,066,028.08/1,085,415.69
  6. Step 6: Final answer
    x = 430,050.96

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.