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Finding the Fourth Proportional to 627,301.80, 940,988.75 and 177,987.51

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Solution

The fourth proportional to 627,301.80, 940,988.75 and 177,987.51 is: 266,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,301.80 : 940,988.75 = 177,987.51 : x
  2. Step 2: Convert to fraction form
    627,301.80/940,988.75 = 177,987.51/x
  3. Step 3: Cross multiply
    627,301.80x = 940,988.75 × 177,987.51
  4. Step 4: Simplify right side
    627,301.80x = 167,484,243,660.58
  5. Step 5: Solve for x
    x = 167,484,243,660.58/627,301.80
  6. Step 6: Final answer
    x = 266,991.49

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Half scale
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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.