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Finding the Fourth Proportional to 304,411.20, 456,616.80 and 302,661.60

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Solution

The fourth proportional to 304,411.20, 456,616.80 and 302,661.60 is: 453,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,411.20 : 456,616.80 = 302,661.60 : x
  2. Step 2: Convert to fraction form
    304,411.20/456,616.80 = 302,661.60/x
  3. Step 3: Cross multiply
    304,411.20x = 456,616.80 × 302,661.60
  4. Step 4: Simplify right side
    304,411.20x = 138,200,371,274.88
  5. Step 5: Solve for x
    x = 138,200,371,274.88/304,411.20
  6. Step 6: Final answer
    x = 453,992.40

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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.