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Finding the Fourth Proportional to 358,474.80, 537,712.20 and 148,263.60

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Solution

The fourth proportional to 358,474.80, 537,712.20 and 148,263.60 is: 222,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,474.80 : 537,712.20 = 148,263.60 : x
  2. Step 2: Convert to fraction form
    358,474.80/537,712.20 = 148,263.60/x
  3. Step 3: Cross multiply
    358,474.80x = 537,712.20 × 148,263.60
  4. Step 4: Simplify right side
    358,474.80x = 79,723,146,535.92
  5. Step 5: Solve for x
    x = 79,723,146,535.92/358,474.80
  6. Step 6: Final answer
    x = 222,395.40

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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.