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Finding the Fourth Proportional to 404,245.80, 606,368.70 and 193,775.40

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Solution

The fourth proportional to 404,245.80, 606,368.70 and 193,775.40 is: 290,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,245.80 : 606,368.70 = 193,775.40 : x
  2. Step 2: Convert to fraction form
    404,245.80/606,368.70 = 193,775.40/x
  3. Step 3: Cross multiply
    404,245.80x = 606,368.70 × 193,775.40
  4. Step 4: Simplify right side
    404,245.80x = 117,499,337,389.98
  5. Step 5: Solve for x
    x = 117,499,337,389.98/404,245.80
  6. Step 6: Final answer
    x = 290,663.10

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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.