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Finding the Fourth Proportional to 404,643.20, 607,045.80 and 120,333.20

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Solution

The fourth proportional to 404,643.20, 607,045.80 and 120,333.20 is: 180,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,643.20 : 607,045.80 = 120,333.20 : x
  2. Step 2: Convert to fraction form
    404,643.20/607,045.80 = 120,333.20/x
  3. Step 3: Cross multiply
    404,643.20x = 607,045.80 × 120,333.20
  4. Step 4: Simplify right side
    404,643.20x = 73,047,763,660.56
  5. Step 5: Solve for x
    x = 73,047,763,660.56/404,643.20
  6. Step 6: Final answer
    x = 180,523.89

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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.