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Finding the Fourth Proportional to 584,699.91, 806,885.88 and 316,427.91

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Solution

The fourth proportional to 584,699.91, 806,885.88 and 316,427.91 is: 436,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,699.91 : 806,885.88 = 316,427.91 : x
  2. Step 2: Convert to fraction form
    584,699.91/806,885.88 = 316,427.91/x
  3. Step 3: Cross multiply
    584,699.91x = 806,885.88 × 316,427.91
  4. Step 4: Simplify right side
    584,699.91x = 255,321,208,404.48
  5. Step 5: Solve for x
    x = 255,321,208,404.48/584,699.91
  6. Step 6: Final answer
    x = 436,670.51

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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.