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Finding the Fourth Proportional to 676,126.08, 932,780.54 and 404,038.68

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Solution

The fourth proportional to 676,126.08, 932,780.54 and 404,038.68 is: 557,409.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,126.08 : 932,780.54 = 404,038.68 : x
  2. Step 2: Convert to fraction form
    676,126.08/932,780.54 = 404,038.68/x
  3. Step 3: Cross multiply
    676,126.08x = 932,780.54 × 404,038.68
  4. Step 4: Simplify right side
    676,126.08x = 376,879,416,091.09
  5. Step 5: Solve for x
    x = 376,879,416,091.09/676,126.08
  6. Step 6: Final answer
    x = 557,409.97

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1.5x scale

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.