Home / 534,981.89-738,085.85-305,373.54

Finding the Fourth Proportional to 534,981.89, 738,085.85 and 305,373.54

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Solution

The fourth proportional to 534,981.89, 738,085.85 and 305,373.54 is: 421,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,981.89 : 738,085.85 = 305,373.54 : x
  2. Step 2: Convert to fraction form
    534,981.89/738,085.85 = 305,373.54/x
  3. Step 3: Cross multiply
    534,981.89x = 738,085.85 × 305,373.54
  4. Step 4: Simplify right side
    534,981.89x = 225,391,890,365.65
  5. Step 5: Solve for x
    x = 225,391,890,365.65/534,981.89
  6. Step 6: Final answer
    x = 421,307.51

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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.