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Finding the Fourth Proportional to 657,665.92, 907,582.08 and 371,198.08

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Solution

The fourth proportional to 657,665.92, 907,582.08 and 371,198.08 is: 512,255.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,665.92 : 907,582.08 = 371,198.08 : x
  2. Step 2: Convert to fraction form
    657,665.92/907,582.08 = 371,198.08/x
  3. Step 3: Cross multiply
    657,665.92x = 907,582.08 × 371,198.08
  4. Step 4: Simplify right side
    657,665.92x = 336,892,725,538.41
  5. Step 5: Solve for x
    x = 336,892,725,538.41/657,665.92
  6. Step 6: Final answer
    x = 512,255.11

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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.