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Finding the Fourth Proportional to 632,615.80, 948,923.70 and 605,313.40

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Solution

The fourth proportional to 632,615.80, 948,923.70 and 605,313.40 is: 907,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,615.80 : 948,923.70 = 605,313.40 : x
  2. Step 2: Convert to fraction form
    632,615.80/948,923.70 = 605,313.40/x
  3. Step 3: Cross multiply
    632,615.80x = 948,923.70 × 605,313.40
  4. Step 4: Simplify right side
    632,615.80x = 574,396,231,187.58
  5. Step 5: Solve for x
    x = 574,396,231,187.58/632,615.80
  6. Step 6: Final answer
    x = 907,970.10

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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.