Home / 658,890.51-908,917.81-400,846.11

Finding the Fourth Proportional to 658,890.51, 908,917.81 and 400,846.11

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Solution

The fourth proportional to 658,890.51, 908,917.81 and 400,846.11 is: 552,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,890.51 : 908,917.81 = 400,846.11 : x
  2. Step 2: Convert to fraction form
    658,890.51/908,917.81 = 400,846.11/x
  3. Step 3: Cross multiply
    658,890.51x = 908,917.81 × 400,846.11
  4. Step 4: Simplify right side
    658,890.51x = 364,336,168,448.22
  5. Step 5: Solve for x
    x = 364,336,168,448.22/658,890.51
  6. Step 6: Final answer
    x = 552,954.04

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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.