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Finding the Fourth Proportional to 707,115.66, 975,800.91 and 384,818.83

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Solution

The fourth proportional to 707,115.66, 975,800.91 and 384,818.83 is: 531,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,115.66 : 975,800.91 = 384,818.83 : x
  2. Step 2: Convert to fraction form
    707,115.66/975,800.91 = 384,818.83/x
  3. Step 3: Cross multiply
    707,115.66x = 975,800.91 × 384,818.83
  4. Step 4: Simplify right side
    707,115.66x = 375,506,566,826.98
  5. Step 5: Solve for x
    x = 375,506,566,826.98/707,115.66
  6. Step 6: Final answer
    x = 531,039.81

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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.