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Finding the Fourth Proportional to 707,112.81, 975,818.21 and 384,826.77

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Solution

The fourth proportional to 707,112.81, 975,818.21 and 384,826.77 is: 531,062.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,112.81 : 975,818.21 = 384,826.77 : x
  2. Step 2: Convert to fraction form
    707,112.81/975,818.21 = 384,826.77/x
  3. Step 3: Cross multiply
    707,112.81x = 975,818.21 × 384,826.77
  4. Step 4: Simplify right side
    707,112.81x = 375,520,967,937.35
  5. Step 5: Solve for x
    x = 375,520,967,937.35/707,112.81
  6. Step 6: Final answer
    x = 531,062.32

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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.