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Finding the Fourth Proportional to 544,407, 751,281.66 and 305,943

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Solution

The fourth proportional to 544,407, 751,281.66 and 305,943 is: 422,201.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,407 : 751,281.66 = 305,943 : x
  2. Step 2: Convert to fraction form
    544,407/751,281.66 = 305,943/x
  3. Step 3: Cross multiply
    544,407x = 751,281.66 × 305,943
  4. Step 4: Simplify right side
    544,407x = 229,849,364,905.38
  5. Step 5: Solve for x
    x = 229,849,364,905.38/544,407
  6. Step 6: Final answer
    x = 422,201.34

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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.