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Finding the Fourth Proportional to 560,809.60, 773,928.96 and 306,171.52

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Solution

The fourth proportional to 560,809.60, 773,928.96 and 306,171.52 is: 422,523.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,809.60 : 773,928.96 = 306,171.52 : x
  2. Step 2: Convert to fraction form
    560,809.60/773,928.96 = 306,171.52/x
  3. Step 3: Cross multiply
    560,809.60x = 773,928.96 × 306,171.52
  4. Step 4: Simplify right side
    560,809.60x = 236,955,006,055.22
  5. Step 5: Solve for x
    x = 236,955,006,055.22/560,809.60
  6. Step 6: Final answer
    x = 422,523.09

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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.