Home / 500,972.52-691,370.28-297,144.12

Finding the Fourth Proportional to 500,972.52, 691,370.28 and 297,144.12

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Solution

The fourth proportional to 500,972.52, 691,370.28 and 297,144.12 is: 410,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,972.52 : 691,370.28 = 297,144.12 : x
  2. Step 2: Convert to fraction form
    500,972.52/691,370.28 = 297,144.12/x
  3. Step 3: Cross multiply
    500,972.52x = 691,370.28 × 297,144.12
  4. Step 4: Simplify right side
    500,972.52x = 205,436,613,444.75
  5. Step 5: Solve for x
    x = 205,436,613,444.75/500,972.52
  6. Step 6: Final answer
    x = 410,075.61

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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.