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Finding the Fourth Proportional to 563,548.64, 777,693.60 and 308,910.56

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Solution

The fourth proportional to 563,548.64, 777,693.60 and 308,910.56 is: 426,294.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,548.64 : 777,693.60 = 308,910.56 : x
  2. Step 2: Convert to fraction form
    563,548.64/777,693.60 = 308,910.56/x
  3. Step 3: Cross multiply
    563,548.64x = 777,693.60 × 308,910.56
  4. Step 4: Simplify right side
    563,548.64x = 240,237,765,484.42
  5. Step 5: Solve for x
    x = 240,237,765,484.42/563,548.64
  6. Step 6: Final answer
    x = 426,294.64

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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.