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Finding the Fourth Proportional to 710,546.18, 980,441.54 and 404,451.03

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Solution

The fourth proportional to 710,546.18, 980,441.54 and 404,451.03 is: 558,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,546.18 : 980,441.54 = 404,451.03 : x
  2. Step 2: Convert to fraction form
    710,546.18/980,441.54 = 404,451.03/x
  3. Step 3: Cross multiply
    710,546.18x = 980,441.54 × 404,451.03
  4. Step 4: Simplify right side
    710,546.18x = 396,540,588,685.53
  5. Step 5: Solve for x
    x = 396,540,588,685.53/710,546.18
  6. Step 6: Final answer
    x = 558,078.56

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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.