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Finding the Fourth Proportional to 608,073.80, 912,110.70 and 187,478.60

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Solution

The fourth proportional to 608,073.80, 912,110.70 and 187,478.60 is: 281,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,073.80 : 912,110.70 = 187,478.60 : x
  2. Step 2: Convert to fraction form
    608,073.80/912,110.70 = 187,478.60/x
  3. Step 3: Cross multiply
    608,073.80x = 912,110.70 × 187,478.60
  4. Step 4: Simplify right side
    608,073.80x = 171,001,237,081.02
  5. Step 5: Solve for x
    x = 171,001,237,081.02/608,073.80
  6. Step 6: Final answer
    x = 281,217.90

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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.