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Finding the Fourth Proportional to 404,622.81, 606,934.01 and 120,312.14

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Solution

The fourth proportional to 404,622.81, 606,934.01 and 120,312.14 is: 180,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,622.81 : 606,934.01 = 120,312.14 : x
  2. Step 2: Convert to fraction form
    404,622.81/606,934.01 = 120,312.14/x
  3. Step 3: Cross multiply
    404,622.81x = 606,934.01 × 120,312.14
  4. Step 4: Simplify right side
    404,622.81x = 73,021,526,847.99
  5. Step 5: Solve for x
    x = 73,021,526,847.99/404,622.81
  6. Step 6: Final answer
    x = 180,468.14

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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.