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Finding the Fourth Proportional to 700,627.16, 966,810.66 and 394,690.16

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Solution

The fourth proportional to 700,627.16, 966,810.66 and 394,690.16 is: 544,641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,627.16 : 966,810.66 = 394,690.16 : x
  2. Step 2: Convert to fraction form
    700,627.16/966,810.66 = 394,690.16/x
  3. Step 3: Cross multiply
    700,627.16x = 966,810.66 × 394,690.16
  4. Step 4: Simplify right side
    700,627.16x = 381,590,654,085.11
  5. Step 5: Solve for x
    x = 381,590,654,085.11/700,627.16
  6. Step 6: Final answer
    x = 544,641.54

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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.