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Finding the Fourth Proportional to 857,706.68, 1,183,776.90 and 475,856.48

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Solution

The fourth proportional to 857,706.68, 1,183,776.90 and 475,856.48 is: 656,760.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,706.68 : 1,183,776.90 = 475,856.48 : x
  2. Step 2: Convert to fraction form
    857,706.68/1,183,776.90 = 475,856.48/x
  3. Step 3: Cross multiply
    857,706.68x = 1,183,776.90 × 475,856.48
  4. Step 4: Simplify right side
    857,706.68x = 563,307,908,739.31
  5. Step 5: Solve for x
    x = 563,307,908,739.31/857,706.68
  6. Step 6: Final answer
    x = 656,760.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.