Home / 818,969.59-1,130,179.11-456,385.49

Finding the Fourth Proportional to 818,969.59, 1,130,179.11 and 456,385.49

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Solution

The fourth proportional to 818,969.59, 1,130,179.11 and 456,385.49 is: 629,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,969.59 : 1,130,179.11 = 456,385.49 : x
  2. Step 2: Convert to fraction form
    818,969.59/1,130,179.11 = 456,385.49/x
  3. Step 3: Cross multiply
    818,969.59x = 1,130,179.11 × 456,385.49
  4. Step 4: Simplify right side
    818,969.59x = 515,797,346,905.11
  5. Step 5: Solve for x
    x = 515,797,346,905.11/818,969.59
  6. Step 6: Final answer
    x = 629,812.58

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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.