Home / 430,091.73-641,915.26-422,996.76

Finding the Fourth Proportional to 430,091.73, 641,915.26 and 422,996.76

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Solution

The fourth proportional to 430,091.73, 641,915.26 and 422,996.76 is: 631,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,091.73 : 641,915.26 = 422,996.76 : x
  2. Step 2: Convert to fraction form
    430,091.73/641,915.26 = 422,996.76/x
  3. Step 3: Cross multiply
    430,091.73x = 641,915.26 × 422,996.76
  4. Step 4: Simplify right side
    430,091.73x = 271,528,074,117.07
  5. Step 5: Solve for x
    x = 271,528,074,117.07/430,091.73
  6. Step 6: Final answer
    x = 631,325.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.