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Finding the Fourth Proportional to 495,393.60, 743,089.04 and 140,410.70

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Solution

The fourth proportional to 495,393.60, 743,089.04 and 140,410.70 is: 210,615.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,393.60 : 743,089.04 = 140,410.70 : x
  2. Step 2: Convert to fraction form
    495,393.60/743,089.04 = 140,410.70/x
  3. Step 3: Cross multiply
    495,393.60x = 743,089.04 × 140,410.70
  4. Step 4: Simplify right side
    495,393.60x = 104,337,651,164.35
  5. Step 5: Solve for x
    x = 104,337,651,164.35/495,393.60
  6. Step 6: Final answer
    x = 210,615.66

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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.