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Finding the Fourth Proportional to 293,597.55, 405,145.44 and 172,715.48

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Solution

The fourth proportional to 293,597.55, 405,145.44 and 172,715.48 is: 238,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,597.55 : 405,145.44 = 172,715.48 : x
  2. Step 2: Convert to fraction form
    293,597.55/405,145.44 = 172,715.48/x
  3. Step 3: Cross multiply
    293,597.55x = 405,145.44 × 172,715.48
  4. Step 4: Simplify right side
    293,597.55x = 69,974,889,139.41
  5. Step 5: Solve for x
    x = 69,974,889,139.41/293,597.55
  6. Step 6: Final answer
    x = 238,336.08

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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.