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Finding the Fourth Proportional to 469,761.12, 705,953.89 and 439,514.91

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Solution

The fourth proportional to 469,761.12, 705,953.89 and 439,514.91 is: 660,500.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,761.12 : 705,953.89 = 439,514.91 : x
  2. Step 2: Convert to fraction form
    469,761.12/705,953.89 = 439,514.91/x
  3. Step 3: Cross multiply
    469,761.12x = 705,953.89 × 439,514.91
  4. Step 4: Simplify right side
    469,761.12x = 310,277,259,328.71
  5. Step 5: Solve for x
    x = 310,277,259,328.71/469,761.12
  6. Step 6: Final answer
    x = 660,500.08

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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.