Home / 639,390.04-959,076.64-183,993.16

Finding the Fourth Proportional to 639,390.04, 959,076.64 and 183,993.16

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Solution

The fourth proportional to 639,390.04, 959,076.64 and 183,993.16 is: 275,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,390.04 : 959,076.64 = 183,993.16 : x
  2. Step 2: Convert to fraction form
    639,390.04/959,076.64 = 183,993.16/x
  3. Step 3: Cross multiply
    639,390.04x = 959,076.64 × 183,993.16
  4. Step 4: Simplify right side
    639,390.04x = 176,463,541,675.78
  5. Step 5: Solve for x
    x = 176,463,541,675.78/639,390.04
  6. Step 6: Final answer
    x = 275,987.32

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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.