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Finding the Fourth Proportional to 637,917.80, 955,695.90 and 371,805.80

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Solution

The fourth proportional to 637,917.80, 955,695.90 and 371,805.80 is: 557,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,917.80 : 955,695.90 = 371,805.80 : x
  2. Step 2: Convert to fraction form
    637,917.80/955,695.90 = 371,805.80/x
  3. Step 3: Cross multiply
    637,917.80x = 955,695.90 × 371,805.80
  4. Step 4: Simplify right side
    637,917.80x = 355,333,278,656.22
  5. Step 5: Solve for x
    x = 355,333,278,656.22/637,917.80
  6. Step 6: Final answer
    x = 557,020.48

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1.5x scale

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.