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Finding the Fourth Proportional to 407,104.20, 610,656.30 and 362,003.40

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Solution

The fourth proportional to 407,104.20, 610,656.30 and 362,003.40 is: 543,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,104.20 : 610,656.30 = 362,003.40 : x
  2. Step 2: Convert to fraction form
    407,104.20/610,656.30 = 362,003.40/x
  3. Step 3: Cross multiply
    407,104.20x = 610,656.30 × 362,003.40
  4. Step 4: Simplify right side
    407,104.20x = 221,059,656,831.42
  5. Step 5: Solve for x
    x = 221,059,656,831.42/407,104.20
  6. Step 6: Final answer
    x = 543,005.10

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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.