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Finding the Fourth Proportional to 534,187.91, 801,673.90 and 430,261.67

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Solution

The fourth proportional to 534,187.91, 801,673.90 and 430,261.67 is: 645,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,187.91 : 801,673.90 = 430,261.67 : x
  2. Step 2: Convert to fraction form
    534,187.91/801,673.90 = 430,261.67/x
  3. Step 3: Cross multiply
    534,187.91x = 801,673.90 × 430,261.67
  4. Step 4: Simplify right side
    534,187.91x = 344,929,545,925.39
  5. Step 5: Solve for x
    x = 344,929,545,925.39/534,187.91
  6. Step 6: Final answer
    x = 645,708.27

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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.