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Finding the Fourth Proportional to 885,780, 1,222,442.10 and 503,929.80

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Solution

The fourth proportional to 885,780, 1,222,442.10 and 503,929.80 is: 695,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,780 : 1,222,442.10 = 503,929.80 : x
  2. Step 2: Convert to fraction form
    885,780/1,222,442.10 = 503,929.80/x
  3. Step 3: Cross multiply
    885,780x = 1,222,442.10 × 503,929.80
  4. Step 4: Simplify right side
    885,780x = 616,025,002,964.58
  5. Step 5: Solve for x
    x = 616,025,002,964.58/885,780
  6. Step 6: Final answer
    x = 695,460.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.