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Finding the Fourth Proportional to 560,334.19, 773,245.88 and 305,685.31

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Solution

The fourth proportional to 560,334.19, 773,245.88 and 305,685.31 is: 421,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,334.19 : 773,245.88 = 305,685.31 : x
  2. Step 2: Convert to fraction form
    560,334.19/773,245.88 = 305,685.31/x
  3. Step 3: Cross multiply
    560,334.19x = 773,245.88 × 305,685.31
  4. Step 4: Simplify right side
    560,334.19x = 236,369,905,005.60
  5. Step 5: Solve for x
    x = 236,369,905,005.60/560,334.19
  6. Step 6: Final answer
    x = 421,837.38

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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.