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Finding the Fourth Proportional to 293,554.60, 405,201.54 and 172,689.64

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Solution

The fourth proportional to 293,554.60, 405,201.54 and 172,689.64 is: 238,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,554.60 : 405,201.54 = 172,689.64 : x
  2. Step 2: Convert to fraction form
    293,554.60/405,201.54 = 172,689.64/x
  3. Step 3: Cross multiply
    293,554.60x = 405,201.54 × 172,689.64
  4. Step 4: Simplify right side
    293,554.60x = 69,974,108,070.05
  5. Step 5: Solve for x
    x = 69,974,108,070.05/293,554.60
  6. Step 6: Final answer
    x = 238,368.29

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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.