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Finding the Fourth Proportional to 544,905.70, 817,844.55 and 319,984.90

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Solution

The fourth proportional to 544,905.70, 817,844.55 and 319,984.90 is: 480,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,905.70 : 817,844.55 = 319,984.90 : x
  2. Step 2: Convert to fraction form
    544,905.70/817,844.55 = 319,984.90/x
  3. Step 3: Cross multiply
    544,905.70x = 817,844.55 × 319,984.90
  4. Step 4: Simplify right side
    544,905.70x = 261,697,906,547.30
  5. Step 5: Solve for x
    x = 261,697,906,547.30/544,905.70
  6. Step 6: Final answer
    x = 480,262.74

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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.