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Finding the Fourth Proportional to 291,009.06, 401,592.60 and 163,684.80

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Solution

The fourth proportional to 291,009.06, 401,592.60 and 163,684.80 is: 225,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,009.06 : 401,592.60 = 163,684.80 : x
  2. Step 2: Convert to fraction form
    291,009.06/401,592.60 = 163,684.80/x
  3. Step 3: Cross multiply
    291,009.06x = 401,592.60 × 163,684.80
  4. Step 4: Simplify right side
    291,009.06x = 65,734,604,412.48
  5. Step 5: Solve for x
    x = 65,734,604,412.48/291,009.06
  6. Step 6: Final answer
    x = 225,885.08

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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.