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Finding the Fourth Proportional to 563,763.38, 778,356.34 and 503,230.46

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Solution

The fourth proportional to 563,763.38, 778,356.34 and 503,230.46 is: 694,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,763.38 : 778,356.34 = 503,230.46 : x
  2. Step 2: Convert to fraction form
    563,763.38/778,356.34 = 503,230.46/x
  3. Step 3: Cross multiply
    563,763.38x = 778,356.34 × 503,230.46
  4. Step 4: Simplify right side
    563,763.38x = 391,692,613,872.26
  5. Step 5: Solve for x
    x = 391,692,613,872.26/563,763.38
  6. Step 6: Final answer
    x = 694,781.94

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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.