Home / 461,320.80-691,981.20-414,664.80

Finding the Fourth Proportional to 461,320.80, 691,981.20 and 414,664.80

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Solution

The fourth proportional to 461,320.80, 691,981.20 and 414,664.80 is: 621,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,320.80 : 691,981.20 = 414,664.80 : x
  2. Step 2: Convert to fraction form
    461,320.80/691,981.20 = 414,664.80/x
  3. Step 3: Cross multiply
    461,320.80x = 691,981.20 × 414,664.80
  4. Step 4: Simplify right side
    461,320.80x = 286,940,245,901.76
  5. Step 5: Solve for x
    x = 286,940,245,901.76/461,320.80
  6. Step 6: Final answer
    x = 621,997.20

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1.5x scale

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.