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Finding the Fourth Proportional to 410,110.40, 615,165.60 and 400,894.40

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Solution

The fourth proportional to 410,110.40, 615,165.60 and 400,894.40 is: 601,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,110.40 : 615,165.60 = 400,894.40 : x
  2. Step 2: Convert to fraction form
    410,110.40/615,165.60 = 400,894.40/x
  3. Step 3: Cross multiply
    410,110.40x = 615,165.60 × 400,894.40
  4. Step 4: Simplify right side
    410,110.40x = 246,616,444,112.64
  5. Step 5: Solve for x
    x = 246,616,444,112.64/410,110.40
  6. Step 6: Final answer
    x = 601,341.60

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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.