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Finding the Fourth Proportional to 863,657.65, 1,191,843.61 and 476,462.53

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Solution

The fourth proportional to 863,657.65, 1,191,843.61 and 476,462.53 is: 657,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,657.65 : 1,191,843.61 = 476,462.53 : x
  2. Step 2: Convert to fraction form
    863,657.65/1,191,843.61 = 476,462.53/x
  3. Step 3: Cross multiply
    863,657.65x = 1,191,843.61 × 476,462.53
  4. Step 4: Simplify right side
    863,657.65x = 567,868,821,784.93
  5. Step 5: Solve for x
    x = 567,868,821,784.93/863,657.65
  6. Step 6: Final answer
    x = 657,516.11

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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.