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Finding the Fourth Proportional to 467,681.58, 645,401.53 and 252,821.64

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Solution

The fourth proportional to 467,681.58, 645,401.53 and 252,821.64 is: 348,894.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,681.58 : 645,401.53 = 252,821.64 : x
  2. Step 2: Convert to fraction form
    467,681.58/645,401.53 = 252,821.64/x
  3. Step 3: Cross multiply
    467,681.58x = 645,401.53 × 252,821.64
  4. Step 4: Simplify right side
    467,681.58x = 163,171,473,273.11
  5. Step 5: Solve for x
    x = 163,171,473,273.11/467,681.58
  6. Step 6: Final answer
    x = 348,894.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.