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Finding the Fourth Proportional to 619,450.02, 855,008.19 and 404,585.46

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Solution

The fourth proportional to 619,450.02, 855,008.19 and 404,585.46 is: 558,437.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,450.02 : 855,008.19 = 404,585.46 : x
  2. Step 2: Convert to fraction form
    619,450.02/855,008.19 = 404,585.46/x
  3. Step 3: Cross multiply
    619,450.02x = 855,008.19 × 404,585.46
  4. Step 4: Simplify right side
    619,450.02x = 345,923,881,854.92
  5. Step 5: Solve for x
    x = 345,923,881,854.92/619,450.02
  6. Step 6: Final answer
    x = 558,437.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.