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Finding the Fourth Proportional to 330,612.32, 495,731.82 and 302,400.02

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Solution

The fourth proportional to 330,612.32, 495,731.82 and 302,400.02 is: 453,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,612.32 : 495,731.82 = 302,400.02 : x
  2. Step 2: Convert to fraction form
    330,612.32/495,731.82 = 302,400.02/x
  3. Step 3: Cross multiply
    330,612.32x = 495,731.82 × 302,400.02
  4. Step 4: Simplify right side
    330,612.32x = 149,909,312,282.64
  5. Step 5: Solve for x
    x = 149,909,312,282.64/330,612.32
  6. Step 6: Final answer
    x = 453,429.30

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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.