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Finding the Fourth Proportional to 552,807.07, 829,207.88 and 215,881.95

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Solution

The fourth proportional to 552,807.07, 829,207.88 and 215,881.95 is: 323,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,807.07 : 829,207.88 = 215,881.95 : x
  2. Step 2: Convert to fraction form
    552,807.07/829,207.88 = 215,881.95/x
  3. Step 3: Cross multiply
    552,807.07x = 829,207.88 × 215,881.95
  4. Step 4: Simplify right side
    552,807.07x = 179,011,014,089.77
  5. Step 5: Solve for x
    x = 179,011,014,089.77/552,807.07
  6. Step 6: Final answer
    x = 323,821.86

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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.