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Finding the Fourth Proportional to 503,898.10, 695,379.35 and 277,543.60

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Solution

The fourth proportional to 503,898.10, 695,379.35 and 277,543.60 is: 383,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,898.10 : 695,379.35 = 277,543.60 : x
  2. Step 2: Convert to fraction form
    503,898.10/695,379.35 = 277,543.60/x
  3. Step 3: Cross multiply
    503,898.10x = 695,379.35 × 277,543.60
  4. Step 4: Simplify right side
    503,898.10x = 192,998,083,300.05
  5. Step 5: Solve for x
    x = 192,998,083,300.05/503,898.10
  6. Step 6: Final answer
    x = 383,010.15

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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.