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Finding the Fourth Proportional to 342,006.60, 513,009.90 and 230,032.20

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Solution

The fourth proportional to 342,006.60, 513,009.90 and 230,032.20 is: 345,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,006.60 : 513,009.90 = 230,032.20 : x
  2. Step 2: Convert to fraction form
    342,006.60/513,009.90 = 230,032.20/x
  3. Step 3: Cross multiply
    342,006.60x = 513,009.90 × 230,032.20
  4. Step 4: Simplify right side
    342,006.60x = 118,008,795,918.78
  5. Step 5: Solve for x
    x = 118,008,795,918.78/342,006.60
  6. Step 6: Final answer
    x = 345,048.30

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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.