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Finding the Fourth Proportional to 262,556.70, 393,316.65 and 157,062.30

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Solution

The fourth proportional to 262,556.70, 393,316.65 and 157,062.30 is: 235,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,556.70 : 393,316.65 = 157,062.30 : x
  2. Step 2: Convert to fraction form
    262,556.70/393,316.65 = 157,062.30/x
  3. Step 3: Cross multiply
    262,556.70x = 393,316.65 × 157,062.30
  4. Step 4: Simplify right side
    262,556.70x = 61,775,217,677.30
  5. Step 5: Solve for x
    x = 61,775,217,677.30/262,556.70
  6. Step 6: Final answer
    x = 235,283.34

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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.