Home / 627,748.70-941,623.05-312,820.70

Finding the Fourth Proportional to 627,748.70, 941,623.05 and 312,820.70

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Solution

The fourth proportional to 627,748.70, 941,623.05 and 312,820.70 is: 469,231.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,748.70 : 941,623.05 = 312,820.70 : x
  2. Step 2: Convert to fraction form
    627,748.70/941,623.05 = 312,820.70/x
  3. Step 3: Cross multiply
    627,748.70x = 941,623.05 × 312,820.70
  4. Step 4: Simplify right side
    627,748.70x = 294,559,181,637.14
  5. Step 5: Solve for x
    x = 294,559,181,637.14/627,748.70
  6. Step 6: Final answer
    x = 469,231.05

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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.