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Finding the Fourth Proportional to 407,854.04, 611,868.53 and 171,060.26

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Solution

The fourth proportional to 407,854.04, 611,868.53 and 171,060.26 is: 256,627.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,854.04 : 611,868.53 = 171,060.26 : x
  2. Step 2: Convert to fraction form
    407,854.04/611,868.53 = 171,060.26/x
  3. Step 3: Cross multiply
    407,854.04x = 611,868.53 × 171,060.26
  4. Step 4: Simplify right side
    407,854.04x = 104,666,387,195.93
  5. Step 5: Solve for x
    x = 104,666,387,195.93/407,854.04
  6. Step 6: Final answer
    x = 256,627.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.