Home / 767,187.87-1,151,113.66-411,786.70

Finding the Fourth Proportional to 767,187.87, 1,151,113.66 and 411,786.70

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Solution

The fourth proportional to 767,187.87, 1,151,113.66 and 411,786.70 is: 617,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,187.87 : 1,151,113.66 = 411,786.70 : x
  2. Step 2: Convert to fraction form
    767,187.87/1,151,113.66 = 411,786.70/x
  3. Step 3: Cross multiply
    767,187.87x = 1,151,113.66 × 411,786.70
  4. Step 4: Simplify right side
    767,187.87x = 474,013,295,376.32
  5. Step 5: Solve for x
    x = 474,013,295,376.32/767,187.87
  6. Step 6: Final answer
    x = 617,858.17

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Double scale
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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.