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Finding the Fourth Proportional to 522,988.25, 784,860.54 and 186,031.69

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Solution

The fourth proportional to 522,988.25, 784,860.54 and 186,031.69 is: 279,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,988.25 : 784,860.54 = 186,031.69 : x
  2. Step 2: Convert to fraction form
    522,988.25/784,860.54 = 186,031.69/x
  3. Step 3: Cross multiply
    522,988.25x = 784,860.54 × 186,031.69
  4. Step 4: Simplify right side
    522,988.25x = 146,008,930,010.74
  5. Step 5: Solve for x
    x = 146,008,930,010.74/522,988.25
  6. Step 6: Final answer
    x = 279,182.05

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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.