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Finding the Fourth Proportional to 608,645.97, 912,790.50 and 229,293

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Solution

The fourth proportional to 608,645.97, 912,790.50 and 229,293 is: 343,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,645.97 : 912,790.50 = 229,293 : x
  2. Step 2: Convert to fraction form
    608,645.97/912,790.50 = 229,293/x
  3. Step 3: Cross multiply
    608,645.97x = 912,790.50 × 229,293
  4. Step 4: Simplify right side
    608,645.97x = 209,296,472,116.50
  5. Step 5: Solve for x
    x = 209,296,472,116.50/608,645.97
  6. Step 6: Final answer
    x = 343,872.27

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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.