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Finding the Fourth Proportional to 405,950.20, 608,925.30 and 125,553.40

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Solution

The fourth proportional to 405,950.20, 608,925.30 and 125,553.40 is: 188,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,950.20 : 608,925.30 = 125,553.40 : x
  2. Step 2: Convert to fraction form
    405,950.20/608,925.30 = 125,553.40/x
  3. Step 3: Cross multiply
    405,950.20x = 608,925.30 × 125,553.40
  4. Step 4: Simplify right side
    405,950.20x = 76,452,641,761.02
  5. Step 5: Solve for x
    x = 76,452,641,761.02/405,950.20
  6. Step 6: Final answer
    x = 188,330.10

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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.