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Finding the Fourth Proportional to 289,504.96, 399,421.15 and 174,740.00

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Solution

The fourth proportional to 289,504.96, 399,421.15 and 174,740.00 is: 241,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,504.96 : 399,421.15 = 174,740.00 : x
  2. Step 2: Convert to fraction form
    289,504.96/399,421.15 = 174,740.00/x
  3. Step 3: Cross multiply
    289,504.96x = 399,421.15 × 174,740.00
  4. Step 4: Simplify right side
    289,504.96x = 69,794,849,317.04
  5. Step 5: Solve for x
    x = 69,794,849,317.04/289,504.96
  6. Step 6: Final answer
    x = 241,083.43

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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.