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Finding the Fourth Proportional to 368,009.53, 552,014.13 and 115,309.88

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Solution

The fourth proportional to 368,009.53, 552,014.13 and 115,309.88 is: 172,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,009.53 : 552,014.13 = 115,309.88 : x
  2. Step 2: Convert to fraction form
    368,009.53/552,014.13 = 115,309.88/x
  3. Step 3: Cross multiply
    368,009.53x = 552,014.13 × 115,309.88
  4. Step 4: Simplify right side
    368,009.53x = 63,652,684,036.23
  5. Step 5: Solve for x
    x = 63,652,684,036.23/368,009.53
  6. Step 6: Final answer
    x = 172,964.77

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1.5x scale

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.