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Finding the Fourth Proportional to 560,157.56, 773,083.86 and 318,476.60

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Solution

The fourth proportional to 560,157.56, 773,083.86 and 318,476.60 is: 439,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,157.56 : 773,083.86 = 318,476.60 : x
  2. Step 2: Convert to fraction form
    560,157.56/773,083.86 = 318,476.60/x
  3. Step 3: Cross multiply
    560,157.56x = 773,083.86 × 318,476.60
  4. Step 4: Simplify right side
    560,157.56x = 246,209,119,247.68
  5. Step 5: Solve for x
    x = 246,209,119,247.68/560,157.56
  6. Step 6: Final answer
    x = 439,535.48

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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.