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Finding the Fourth Proportional to 504,492.12, 695,475.75 and 396,875.31

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Solution

The fourth proportional to 504,492.12, 695,475.75 and 396,875.31 is: 547,118.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,492.12 : 695,475.75 = 396,875.31 : x
  2. Step 2: Convert to fraction form
    504,492.12/695,475.75 = 396,875.31/x
  3. Step 3: Cross multiply
    504,492.12x = 695,475.75 × 396,875.31
  4. Step 4: Simplify right side
    504,492.12x = 276,017,153,878.73
  5. Step 5: Solve for x
    x = 276,017,153,878.73/504,492.12
  6. Step 6: Final answer
    x = 547,118.86

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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.