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Finding the Fourth Proportional to 295,312.60, 442,968.90 and 108,299.80

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Solution

The fourth proportional to 295,312.60, 442,968.90 and 108,299.80 is: 162,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,312.60 : 442,968.90 = 108,299.80 : x
  2. Step 2: Convert to fraction form
    295,312.60/442,968.90 = 108,299.80/x
  3. Step 3: Cross multiply
    295,312.60x = 442,968.90 × 108,299.80
  4. Step 4: Simplify right side
    295,312.60x = 47,973,443,276.22
  5. Step 5: Solve for x
    x = 47,973,443,276.22/295,312.60
  6. Step 6: Final answer
    x = 162,449.70

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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.