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Finding the Fourth Proportional to 544,693.80, 817,039.46 and 259,518.72

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Solution

The fourth proportional to 544,693.80, 817,039.46 and 259,518.72 is: 389,277.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,693.80 : 817,039.46 = 259,518.72 : x
  2. Step 2: Convert to fraction form
    544,693.80/817,039.46 = 259,518.72/x
  3. Step 3: Cross multiply
    544,693.80x = 817,039.46 × 259,518.72
  4. Step 4: Simplify right side
    544,693.80x = 212,037,034,848.69
  5. Step 5: Solve for x
    x = 212,037,034,848.69/544,693.80
  6. Step 6: Final answer
    x = 389,277.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.