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Finding the Fourth Proportional to 544,406.49, 751,065.19 and 314,921.19

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Solution

The fourth proportional to 544,406.49, 751,065.19 and 314,921.19 is: 434,466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,406.49 : 751,065.19 = 314,921.19 : x
  2. Step 2: Convert to fraction form
    544,406.49/751,065.19 = 314,921.19/x
  3. Step 3: Cross multiply
    544,406.49x = 751,065.19 × 314,921.19
  4. Step 4: Simplify right side
    544,406.49x = 236,526,343,402.38
  5. Step 5: Solve for x
    x = 236,526,343,402.38/544,406.49
  6. Step 6: Final answer
    x = 434,466.43

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.