Home / 776,554.35-1,071,435.78-454,343.64

Finding the Fourth Proportional to 776,554.35, 1,071,435.78 and 454,343.64

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Solution

The fourth proportional to 776,554.35, 1,071,435.78 and 454,343.64 is: 626,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,554.35 : 1,071,435.78 = 454,343.64 : x
  2. Step 2: Convert to fraction form
    776,554.35/1,071,435.78 = 454,343.64/x
  3. Step 3: Cross multiply
    776,554.35x = 1,071,435.78 × 454,343.64
  4. Step 4: Simplify right side
    776,554.35x = 486,800,032,311.44
  5. Step 5: Solve for x
    x = 486,800,032,311.44/776,554.35
  6. Step 6: Final answer
    x = 626,871.81

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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.