Home / 774,544.11-1,161,415.16-347,712.45

Finding the Fourth Proportional to 774,544.11, 1,161,415.16 and 347,712.45

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Solution

The fourth proportional to 774,544.11, 1,161,415.16 and 347,712.45 is: 521,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,544.11 : 1,161,415.16 = 347,712.45 : x
  2. Step 2: Convert to fraction form
    774,544.11/1,161,415.16 = 347,712.45/x
  3. Step 3: Cross multiply
    774,544.11x = 1,161,415.16 × 347,712.45
  4. Step 4: Simplify right side
    774,544.11x = 403,838,505,960.80
  5. Step 5: Solve for x
    x = 403,838,505,960.80/774,544.11
  6. Step 6: Final answer
    x = 521,388.65

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Double scale
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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.