Home / 534,795.85-738,018.91-289,780.43

Finding the Fourth Proportional to 534,795.85, 738,018.91 and 289,780.43

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Solution

The fourth proportional to 534,795.85, 738,018.91 and 289,780.43 is: 399,897.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,795.85 : 738,018.91 = 289,780.43 : x
  2. Step 2: Convert to fraction form
    534,795.85/738,018.91 = 289,780.43/x
  3. Step 3: Cross multiply
    534,795.85x = 738,018.91 × 289,780.43
  4. Step 4: Simplify right side
    534,795.85x = 213,863,432,673.39
  5. Step 5: Solve for x
    x = 213,863,432,673.39/534,795.85
  6. Step 6: Final answer
    x = 399,897.33

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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.