Home / 619,918.80-929,878.20-176,629.20

Finding the Fourth Proportional to 619,918.80, 929,878.20 and 176,629.20

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Solution

The fourth proportional to 619,918.80, 929,878.20 and 176,629.20 is: 264,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,918.80 : 929,878.20 = 176,629.20 : x
  2. Step 2: Convert to fraction form
    619,918.80/929,878.20 = 176,629.20/x
  3. Step 3: Cross multiply
    619,918.80x = 929,878.20 × 176,629.20
  4. Step 4: Simplify right side
    619,918.80x = 164,243,642,563.44
  5. Step 5: Solve for x
    x = 164,243,642,563.44/619,918.80
  6. Step 6: Final answer
    x = 264,943.80

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Double scale
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Similar ratio
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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.