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Finding the Fourth Proportional to 293,421.80, 440,132.70 and 115,837.40

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Solution

The fourth proportional to 293,421.80, 440,132.70 and 115,837.40 is: 173,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,421.80 : 440,132.70 = 115,837.40 : x
  2. Step 2: Convert to fraction form
    293,421.80/440,132.70 = 115,837.40/x
  3. Step 3: Cross multiply
    293,421.80x = 440,132.70 × 115,837.40
  4. Step 4: Simplify right side
    293,421.80x = 50,983,827,622.98
  5. Step 5: Solve for x
    x = 50,983,827,622.98/293,421.80
  6. Step 6: Final answer
    x = 173,756.10

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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.