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Finding the Fourth Proportional to 344,809.90, 517,360.65 and 218,547.10

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Solution

The fourth proportional to 344,809.90, 517,360.65 and 218,547.10 is: 327,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,809.90 : 517,360.65 = 218,547.10 : x
  2. Step 2: Convert to fraction form
    344,809.90/517,360.65 = 218,547.10/x
  3. Step 3: Cross multiply
    344,809.90x = 517,360.65 × 218,547.10
  4. Step 4: Simplify right side
    344,809.90x = 113,067,669,711.62
  5. Step 5: Solve for x
    x = 113,067,669,711.62/344,809.90
  6. Step 6: Final answer
    x = 327,913.06

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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.