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Finding the Fourth Proportional to 440,157.60, 659,458.80 and 360,842.40

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Solution

The fourth proportional to 440,157.60, 659,458.80 and 360,842.40 is: 540,626.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,157.60 : 659,458.80 = 360,842.40 : x
  2. Step 2: Convert to fraction form
    440,157.60/659,458.80 = 360,842.40/x
  3. Step 3: Cross multiply
    440,157.60x = 659,458.80 × 360,842.40
  4. Step 4: Simplify right side
    440,157.60x = 237,960,696,093.12
  5. Step 5: Solve for x
    x = 237,960,696,093.12/440,157.60
  6. Step 6: Final answer
    x = 540,626.12

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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.