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Finding the Fourth Proportional to 882,693.86, 1,218,106.15 and 520,133.00

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Solution

The fourth proportional to 882,693.86, 1,218,106.15 and 520,133.00 is: 717,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,693.86 : 1,218,106.15 = 520,133.00 : x
  2. Step 2: Convert to fraction form
    882,693.86/1,218,106.15 = 520,133.00/x
  3. Step 3: Cross multiply
    882,693.86x = 1,218,106.15 × 520,133.00
  4. Step 4: Simplify right side
    882,693.86x = 633,577,198,727.09
  5. Step 5: Solve for x
    x = 633,577,198,727.09/882,693.86
  6. Step 6: Final answer
    x = 717,776.83

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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.