Home / 690,893.24-953,434.61-400,561.23

Finding the Fourth Proportional to 690,893.24, 953,434.61 and 400,561.23

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Solution

The fourth proportional to 690,893.24, 953,434.61 and 400,561.23 is: 552,775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,893.24 : 953,434.61 = 400,561.23 : x
  2. Step 2: Convert to fraction form
    690,893.24/953,434.61 = 400,561.23/x
  3. Step 3: Cross multiply
    690,893.24x = 953,434.61 × 400,561.23
  4. Step 4: Simplify right side
    690,893.24x = 381,908,933,336.19
  5. Step 5: Solve for x
    x = 381,908,933,336.19/690,893.24
  6. Step 6: Final answer
    x = 552,775.61

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Double scale
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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.