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Finding the Fourth Proportional to 312,208.20, 468,312.30 and 233,476.20

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Solution

The fourth proportional to 312,208.20, 468,312.30 and 233,476.20 is: 350,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,208.20 : 468,312.30 = 233,476.20 : x
  2. Step 2: Convert to fraction form
    312,208.20/468,312.30 = 233,476.20/x
  3. Step 3: Cross multiply
    312,208.20x = 468,312.30 × 233,476.20
  4. Step 4: Simplify right side
    312,208.20x = 109,339,776,217.26
  5. Step 5: Solve for x
    x = 109,339,776,217.26/312,208.20
  6. Step 6: Final answer
    x = 350,214.30

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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.