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Finding the Fourth Proportional to 608,570.14, 912,876.03 and 209,207.50

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Solution

The fourth proportional to 608,570.14, 912,876.03 and 209,207.50 is: 313,818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,570.14 : 912,876.03 = 209,207.50 : x
  2. Step 2: Convert to fraction form
    608,570.14/912,876.03 = 209,207.50/x
  3. Step 3: Cross multiply
    608,570.14x = 912,876.03 × 209,207.50
  4. Step 4: Simplify right side
    608,570.14x = 190,980,512,046.23
  5. Step 5: Solve for x
    x = 190,980,512,046.23/608,570.14
  6. Step 6: Final answer
    x = 313,818.41

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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.