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Finding the Fourth Proportional to 417,933.40, 626,900.10 and 252,045.40

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Solution

The fourth proportional to 417,933.40, 626,900.10 and 252,045.40 is: 378,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,933.40 : 626,900.10 = 252,045.40 : x
  2. Step 2: Convert to fraction form
    417,933.40/626,900.10 = 252,045.40/x
  3. Step 3: Cross multiply
    417,933.40x = 626,900.10 × 252,045.40
  4. Step 4: Simplify right side
    417,933.40x = 158,007,286,464.54
  5. Step 5: Solve for x
    x = 158,007,286,464.54/417,933.40
  6. Step 6: Final answer
    x = 378,068.10

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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.