Home / 761,361.57-1,050,678.83-455,450.85

Finding the Fourth Proportional to 761,361.57, 1,050,678.83 and 455,450.85

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Solution

The fourth proportional to 761,361.57, 1,050,678.83 and 455,450.85 is: 628,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,361.57 : 1,050,678.83 = 455,450.85 : x
  2. Step 2: Convert to fraction form
    761,361.57/1,050,678.83 = 455,450.85/x
  3. Step 3: Cross multiply
    761,361.57x = 1,050,678.83 × 455,450.85
  4. Step 4: Simplify right side
    761,361.57x = 478,532,563,923.25
  5. Step 5: Solve for x
    x = 478,532,563,923.25/761,361.57
  6. Step 6: Final answer
    x = 628,522.09

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Double scale
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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.