Home / 824,836.94-1,235,644.51-391,938.51

Finding the Fourth Proportional to 824,836.94, 1,235,644.51 and 391,938.51

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Solution

The fourth proportional to 824,836.94, 1,235,644.51 and 391,938.51 is: 587,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,836.94 : 1,235,644.51 = 391,938.51 : x
  2. Step 2: Convert to fraction form
    824,836.94/1,235,644.51 = 391,938.51/x
  3. Step 3: Cross multiply
    824,836.94x = 1,235,644.51 × 391,938.51
  4. Step 4: Simplify right side
    824,836.94x = 484,296,668,139.08
  5. Step 5: Solve for x
    x = 484,296,668,139.08/824,836.94
  6. Step 6: Final answer
    x = 587,142.32

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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.