Home / 783,405.05-1,175,107.59-517,103.28

Finding the Fourth Proportional to 783,405.05, 1,175,107.59 and 517,103.28

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Solution

The fourth proportional to 783,405.05, 1,175,107.59 and 517,103.28 is: 775,654.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,405.05 : 1,175,107.59 = 517,103.28 : x
  2. Step 2: Convert to fraction form
    783,405.05/1,175,107.59 = 517,103.28/x
  3. Step 3: Cross multiply
    783,405.05x = 1,175,107.59 × 517,103.28
  4. Step 4: Simplify right side
    783,405.05x = 607,651,989,141.90
  5. Step 5: Solve for x
    x = 607,651,989,141.90/783,405.05
  6. Step 6: Final answer
    x = 775,654.93

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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.