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Finding the Fourth Proportional to 412,325.60, 618,488.40 and 368,002.40

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Solution

The fourth proportional to 412,325.60, 618,488.40 and 368,002.40 is: 552,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,325.60 : 618,488.40 = 368,002.40 : x
  2. Step 2: Convert to fraction form
    412,325.60/618,488.40 = 368,002.40/x
  3. Step 3: Cross multiply
    412,325.60x = 618,488.40 × 368,002.40
  4. Step 4: Simplify right side
    412,325.60x = 227,605,215,572.16
  5. Step 5: Solve for x
    x = 227,605,215,572.16/412,325.60
  6. Step 6: Final answer
    x = 552,003.60

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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.