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Finding the Fourth Proportional to 545,175.01, 817,818.45 and 208,498.84

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Solution

The fourth proportional to 545,175.01, 817,818.45 and 208,498.84 is: 312,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,175.01 : 817,818.45 = 208,498.84 : x
  2. Step 2: Convert to fraction form
    545,175.01/817,818.45 = 208,498.84/x
  3. Step 3: Cross multiply
    545,175.01x = 817,818.45 × 208,498.84
  4. Step 4: Simplify right side
    545,175.01x = 170,514,195,329.18
  5. Step 5: Solve for x
    x = 170,514,195,329.18/545,175.01
  6. Step 6: Final answer
    x = 312,769.65

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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.