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Finding the Fourth Proportional to 330,748.80, 495,612.90 and 246,111.90

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Solution

The fourth proportional to 330,748.80, 495,612.90 and 246,111.90 is: 368,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,748.80 : 495,612.90 = 246,111.90 : x
  2. Step 2: Convert to fraction form
    330,748.80/495,612.90 = 246,111.90/x
  3. Step 3: Cross multiply
    330,748.80x = 495,612.90 × 246,111.90
  4. Step 4: Simplify right side
    330,748.80x = 121,976,232,483.51
  5. Step 5: Solve for x
    x = 121,976,232,483.51/330,748.80
  6. Step 6: Final answer
    x = 368,788.13

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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.