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Finding the Fourth Proportional to 560,188.75, 773,069.69 and 305,539.94

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Solution

The fourth proportional to 560,188.75, 773,069.69 and 305,539.94 is: 421,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,188.75 : 773,069.69 = 305,539.94 : x
  2. Step 2: Convert to fraction form
    560,188.75/773,069.69 = 305,539.94/x
  3. Step 3: Cross multiply
    560,188.75x = 773,069.69 × 305,539.94
  4. Step 4: Simplify right side
    560,188.75x = 236,203,666,698.42
  5. Step 5: Solve for x
    x = 236,203,666,698.42/560,188.75
  6. Step 6: Final answer
    x = 421,650.14

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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.