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Finding the Fourth Proportional to 544,749.76, 817,128.28 and 189,770.50

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Solution

The fourth proportional to 544,749.76, 817,128.28 and 189,770.50 is: 284,657.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,749.76 : 817,128.28 = 189,770.50 : x
  2. Step 2: Convert to fraction form
    544,749.76/817,128.28 = 189,770.50/x
  3. Step 3: Cross multiply
    544,749.76x = 817,128.28 × 189,770.50
  4. Step 4: Simplify right side
    544,749.76x = 155,066,842,259.74
  5. Step 5: Solve for x
    x = 155,066,842,259.74/544,749.76
  6. Step 6: Final answer
    x = 284,657.02

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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.