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Finding the Fourth Proportional to 440,125.60, 659,410.80 and 360,810.40

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Solution

The fourth proportional to 440,125.60, 659,410.80 and 360,810.40 is: 540,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,125.60 : 659,410.80 = 360,810.40 : x
  2. Step 2: Convert to fraction form
    440,125.60/659,410.80 = 360,810.40/x
  3. Step 3: Cross multiply
    440,125.60x = 659,410.80 × 360,810.40
  4. Step 4: Simplify right side
    440,125.60x = 237,922,274,512.32
  5. Step 5: Solve for x
    x = 237,922,274,512.32/440,125.60
  6. Step 6: Final answer
    x = 540,578.13

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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.