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Finding the Fourth Proportional to 885,486.88, 1,221,972 and 503,537.04

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Solution

The fourth proportional to 885,486.88, 1,221,972 and 503,537.04 is: 694,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,486.88 : 1,221,972 = 503,537.04 : x
  2. Step 2: Convert to fraction form
    885,486.88/1,221,972 = 503,537.04/x
  3. Step 3: Cross multiply
    885,486.88x = 1,221,972 × 503,537.04
  4. Step 4: Simplify right side
    885,486.88x = 615,308,163,842.88
  5. Step 5: Solve for x
    x = 615,308,163,842.88/885,486.88
  6. Step 6: Final answer
    x = 694,881.18

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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.