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Finding the Fourth Proportional to 412,216.70, 618,325.05 and 202,264.70

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Solution

The fourth proportional to 412,216.70, 618,325.05 and 202,264.70 is: 303,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,216.70 : 618,325.05 = 202,264.70 : x
  2. Step 2: Convert to fraction form
    412,216.70/618,325.05 = 202,264.70/x
  3. Step 3: Cross multiply
    412,216.70x = 618,325.05 × 202,264.70
  4. Step 4: Simplify right side
    412,216.70x = 125,065,330,740.74
  5. Step 5: Solve for x
    x = 125,065,330,740.74/412,216.70
  6. Step 6: Final answer
    x = 303,397.05

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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.