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Finding the Fourth Proportional to 286,657.72, 395,555.51 and 171,941.03

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Solution

The fourth proportional to 286,657.72, 395,555.51 and 171,941.03 is: 237,259.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,657.72 : 395,555.51 = 171,941.03 : x
  2. Step 2: Convert to fraction form
    286,657.72/395,555.51 = 171,941.03/x
  3. Step 3: Cross multiply
    286,657.72x = 395,555.51 × 171,941.03
  4. Step 4: Simplify right side
    286,657.72x = 68,012,221,988.78
  5. Step 5: Solve for x
    x = 68,012,221,988.78/286,657.72
  6. Step 6: Final answer
    x = 237,259.34

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1.5x scale

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.