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Finding the Fourth Proportional to 885,781, 1,222,443.48 and 503,930.80

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Solution

The fourth proportional to 885,781, 1,222,443.48 and 503,930.80 is: 695,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,781 : 1,222,443.48 = 503,930.80 : x
  2. Step 2: Convert to fraction form
    885,781/1,222,443.48 = 503,930.80/x
  3. Step 3: Cross multiply
    885,781x = 1,222,443.48 × 503,930.80
  4. Step 4: Simplify right side
    885,781x = 616,026,920,831.18
  5. Step 5: Solve for x
    x = 616,026,920,831.18/885,781
  6. Step 6: Final answer
    x = 695,461.88

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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.