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Finding the Fourth Proportional to 432,015.48, 647,948.48 and 195,303.12

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Solution

The fourth proportional to 432,015.48, 647,948.48 and 195,303.12 is: 292,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,015.48 : 647,948.48 = 195,303.12 : x
  2. Step 2: Convert to fraction form
    432,015.48/647,948.48 = 195,303.12/x
  3. Step 3: Cross multiply
    432,015.48x = 647,948.48 × 195,303.12
  4. Step 4: Simplify right side
    432,015.48x = 126,546,359,743.26
  5. Step 5: Solve for x
    x = 126,546,359,743.26/432,015.48
  6. Step 6: Final answer
    x = 292,920.89

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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.